Apple Cinnamon Protein Overnight Oats
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These healthy Apple Cinnamon Protein Overnight Oats are quick and easy to make, packed with protein and fiber, and full of the BEST apple pie flavors and warming cinnamon notes! They’re also meal prep friendly and will keep you full and fueled for hours!
Looking for more high protein overnight oats recipes? Try my Chocolate Peanut Butter Banana Overnight Oats, this Carrot Cake Overnight Oats, or Snickerdoodle Protein Overnight Oats next!
About This Recipe
If you love overnight oats for breakfast, you’ll love this healthy fall-themed breakfast with apple pie flavors! These Apple Cinnamon Protein Overnight Oats are easy to make the night before and take just minutes to prepare.
This protein-packed breakfast is full of warming cinnamon and apple pie flavors, bite-sized pieces of apples in the oats base, and topped with warm tender cinnamon apples, crunchy walnuts and a homemade spiced pecan butter! Though you can use any nut butter you love for a boost of healthy fats.
I’ve used apple pie protein powder to make this filling and nutritious breakfast but vanilla protein powder works well too.
Best of all, you’ll feel like you’re eating an indulgent dessert but these overnight oats are full of all things good for you! With the perfect balance of protein, fiber, and healthy fats, these oats will keep you feeling full and energized until lunchtime.
These overnight oats with apple are perfect for apple season but you can make them anytime of the year!
If you’re looking for other healthy breakfasts with apple pie flavor, try my Apple Pie Granola or Apple Pie Baked Oats. Or if you’re after a healthy fall-themed dessert, you’ll love this Ninja Creami Apple Pie Protein Ice Cream!

Table of contents
Why This Recipe Works
- Quick & easy and convenient! It takes minutes to prepare overnight oats and they are perfect for grab-and-go breakfasts!
- AMAZING flavors! Warming cinnamon and apple pie flavors in these overnight oats makes this such a delicious and healthy fall-themed breakfast!
- High in protein, fiber and healthy fats. Packed with protein from oats, protein powder and Greek yogurt, these overnight oats will keep you full and satisfied for hours. The oats, apple and chia seeds also will help you reach your fiber needs for the day. Plus, the chia seeds add a boost of healthy fats.
- Meal prep friendly. Make ahead several servings to enjoy during the week!
- Filling and incredible creamy texture. Using a whey-casein protein blend, yogurt and creamy style oats results in a delicious and satiating breakfast that tastes like a dessert!
Ingredient Notes and Substitutes

- Old Fashioned Rolled Oats: I use Red Tractor creamy style rolled oats for an extra thick and creamy texture. Regular old fashioned rolled oats will work too. Use certified gluten-free oats if needed.
- Apple Pie Protein Powder: I used PEScience (get $10 off on your order with my link!) limited edition Apple Pie Protein Powder, which is a whey-casein protein blend. Their vanilla protein powder or snickerdoodle flavored protein with brown sugar and cinnamon notes would also taste great! Add more ground cinnamon and apple pie spice if using vanilla protein powder.
- White Chia Seeds: Or black chia seeds. They thicken the overnight oats and add healthy fats.
- Ground Cinnamon: We’ll add half to our oats base and toss our chopped apples with the other half.
- Apple Pie Spice: I used a store-bought blend made of cinnamon, nutmeg, mace and cloves. Substitute with more cinnamon and add a dash of nutmeg.
- Fat Free Greek Style Yogurt: Or use regular or fat free Greek yogurt, any thick plain yogurt, or dairy-free yogurt.
- Apple: We’ll add half to our oats base and use the other half for the cinnamon apples topping. I used a dazzle apple, but a green apple like Granny Smith, or red apple with yellow specks like Honeycrisp or Envy apples are great in apple pie overnight oats too.
- Sugar-free Maple Syrup: Or use pure maple syrup or pancake syrup to add sweetness. I like Walden Farms Pancake Syrup best.
- Unsweetened Vanilla Almond Milk: Or use regular almond milk, other non-dairy milk or regular dairy milk.
- To Serve/Toppings: Chopped walnuts (or pecans), homemade spiced pecan butter or any store-bought nut butter (peanut butter, almond butter, etc.), high protein granola, sunflower seeds, pumpkin seeds, chia seeds, hemp seeds, etc.
Full ingredient amounts are in the recipe card below.
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Texture Differences in Overnight Oats with Different Types of Protein Powders
- Whey Protein Isolate, Whey Hydrolysate, and Why Concentrate: Easiest to mix but the overnight oats won’t be as thick and creamy. Digests quickly and is absorbed more easily compared to casein and plant-based protein powder.
- Whey-Casein blend: Medium difficulty to mix and will yield a thick and creamy texture. While the whey component digests quickly, casein is slow digesting and will keep you full longer.
- Casein and vegan protein powders: Will yield the thickest and creamiest texture but will take a little more effort to mix. Casein and vegan protein powders absorb more liquid than whey or whey-casein blends and an additional 1-2 tablespoons of milk will be needed for the overnight oats. Casein will keep you full longer and digests at half the speed of whey protein. Vegan protein powders are easily digested and absorbed (depending on the source of plant-based protein) if they are well-processed.
How to Make Apple Cinnamon Protein Overnight Oats
Below is a step-by-step overview on how to make this recipe. Scroll down to get to the recipe card below with the full recipe and detailed instructions!





Full detailed instructions are in the recipe card below.
Storing
The overnight oats without the toppings will keep for up to 3-4 days since there is a chopped apple incorporated in the oats base. However, overnight oats without any fruit can keep for up to 4-5 days if stored properly sealed airtight containers in the fridge. I personally feel overnight oats taste best when consumed within 3 days. After that, the texture starts to change too much and they don’t taste as fresh.
Cook’s Tips
- Consistency. Add more milk for a thinner overnight oatmeal consistency. For a thicker texture, add more chia seeds, Greek yogurt, or protein powder.
- Sweetness level. Use more or less maple syrup depending on your sweetness preference. You can also add unsweetened applesauce instead of chopped apples to the oats base to naturally sweeten the overnight oats instead.
- Enjoy chilled or warm. Overnight oats are typically eaten cold but if you prefer to eat them warm, microwave on high for 1 minute or until warmed to your desired preference. Then add your toppings.

How to Meal Prep Apple Cinnamon Overnight Oats
- Decide how many servings you’d like to make. Multiply the number of servings by the ingredient amounts.
- Mix all the ingredients for the oats base in a large bowl. Mix the dry ingredients first, then add and mix in the wet ingredients. Divide evenly into bowls with lids, mason jars or meal prep containers.
- Refrigerate for 3-4 days. Note that the overnight oats will increasingly thicken over the days in the fridge. I recommend stirring in more milk if needed in the morning of consuming to achieve your desired consistency.
- Make the cinnamon apples and add toppings. It’s best to make the cinnamon apples and add the toppings just before eating so that the apples don’t brown excessively and the walnuts retain their crunch.

Variations
- Gluten-free. Use gluten-free certified oats.
- Dairy-free. Use a vegan protein powder (not whey or casein protein), nut milk or oat milk and a dairy-free Greek or thick Greek style yogurt such as coconut yogurt by Cocobella or something similar. A vanilla or plain yogurt by Kite Hill brand (which is made from almond milk and soy yogurt) can be used too.
- Omit the yogurt. If you want to make apple overnight oats without yogurt, simply leave out the yogurt! You can add some blended cottage cheese to add protein and volume instead.
- Add more protein. Use a full scoop of protein powder instead of ⅔ scoop. You’ll need to add additional milk if doing so that the overnight oats aren’t too thick and can be mixed easily. You can also use soy milk instead of almond milk for more protein.
- Use an unflavored protein powder. Add more apple pie spice, ground cinnamon and additional sweetener to yield a similar flavor.
- Use less apples for each serving. Depending on your appetite or macronutrient needs, you can use less chopped apples for each serving of this apple pie protein overnight oats. Instead of 1 full small apple per serving, use ½ an apple for each serving (¼ chopped apple in the oats base and ¼ for the apple cinnamon topping).
- Don’t add apples to the oats base. I like having both crunchy apples and tender cinnamon apples in these overnight oats to enjoy the both of best worlds. However, if you prefer you can use ½ chopped apple for the topping and skip adding any to the oats base.
- Use a different sweetener. Other sweetener options are honey, date syrup, agave nectar (agave syrup), coconut sugar, monk fruit sweetener or stevia.
FAQs
Chia seeds help thicken overnight oats as they expand when they absorb liquid from the almond milk and form a gel. If you don’t like chia seeds, try ground flax seeds (linseed/ground flaxmeal) instead. Other options to thicken the overnight oats is to use nut butter, protein powder, or psyllium husk. Or you can simply leave out the chia seeds! Your overnight oats will still taste great but just be slightly runny in consistency.
Half cup of milk to half cup of oats is the standard ratio for soaking overnight oats. However, I like my overnight oats VERY thick and creamy so I add less almond milk than most people (⅓ cup). You can add the standard ½ cup or more milk if you prefer your oats to be on the runny side. If you discover that the overnight oats are too thick for your liking in the morning, you can always stir in more milk before adding the toppings.
Old fashioned rolled oats work best for overnight oats. Jumbo oats, porridge oats or quick oats can be used too. Quick oats are especially great if you doing a quick soak for 2-4 hours. Avoid steel-cut oats as they won’t soften enough even if you soak them overnight. Instant oats turn into mush so I don’t recommend them.
Overnight (or 8-12 hours) yields the best thick and creamy texture and is enough time for the oats to absorb the liquid. Soaking longer also helps the starches in the oats to break down and reduces the natural phytic acid. This makes it easier for your body to use the nutrients from the oats more efficiently.
However, even 4 hours will work for overnight oats. The oats won’t be as soft and the overnight oats will be more runny and liquidy in consistency. They will still taste great though.
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More Overnight Oats
Apple Cinnamon Protein Overnight Oats
Healthy Apple Cinnamon Protein Overnight Oats are quick and easy to make, packed with protein and fiber, and full of the BEST apple pie flavors! Perfect for apple season and a nutritious fall-themed breakfast!
Ingredients
Oats Base:
- ½ cup / 40 grams Old Fashioned Rolled Oats (note 1)
- ≈ ⅔ scoop / 20 grams Apple Pie Protein Powder (or vanilla protein powder, I used PEScience Select Protein, a whey-casein protein blend – note 2)
- ½ TBSP / 4 grams White Chia Seeds (or black chia seeds)
- ½ TSP ground Cinnamon – divided
- ¼ TSP Apple Pie Spice (or use more cinnamon)
- 100 grams Fat Free Greek Style Yogurt (or fat free Greek yogurt or any thick plain yogurt)
- ½ small / 80 grams Apple – chopped into small cubes
- 1 TSP / 5ml Sugar-free Maple or Pancake Syrup, to taste
- ⅓ cup / 79ml Unsweetened Almond Milk (or any other plant-based or regular milk of your choice)
Cinnamon Apples:
- 2 TSP / 10ml Sugar-free Maple or Pancake Syrup (such as Walden Farms Maple Walnut Syrup, or use regular maple syrup or any sweetener of choice)
- ½ small / 80 grams Apple – chopped into small cubes
Toppings:
- 1 TBSP / 6 grams chopped Walnuts (or pecans)
- 2 TSP / 10 grams Pecan Butter (optional, or use peanut butter, almond butter, or any other nut butter of choice)
- Other optional toppings: Sunflower seeds, pumpkin seeds, chia seeds, hemp seeds, high protein granola, etc.
Instructions
- Combine the dry ingredients: Add the oats, protein powder, chia seeds, ground cinnamon, and apple pie spice to a medium bowl, mason jar, or meal prep container. Mix to combine.
- Add the wet ingredients: Add the Greek style yogurt, chopped apple, unsweetened almond milk and maple syrup. Mix everything to combine until smooth and creamy.
- Refrigerate and chill: Cover (note 3) and refrigerate for at least 4 hours or overnight for the best thick and creamy texture.
- Make the cinnamon apples: In the morning, add the chopped apple to a bowl with ¼ teaspoon ground cinnamon and 2 teaspoons maple syrup. Mix well to coat. Cover the top with a kitchen paper towel and microwave on high for 90 seconds or until tender. Carefully remove the bowl from the microwave.
- Add toppings: Top the overnight oats with the cinnamon apples, chopped walnuts and pecan butter. Feel free to add any other of your favorite overnight oats toppings. Then enjoy!
Equipment

Artisana Organics Pecan Butter
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Red Tractor Creamy Style Rolled Oats
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Walden Farms Maple Walnut Syrup
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- Old Fashioned Rolled Oats. Use gluten-free certified oats if needed. I used Red Tractor Creamy Style Rolled Oats which makes the overnight oats extra thick and creamy! Jumbo oats, porridge oats, quick oats will all work. Avoid steel-cut oats (they won’t soften enough) and quick oats (they turn into mush).
- Apple Pie Protein Powder. If you don’t have apple pie flavored protein powder, any vanilla protein powder will work. You could also use an unflavored protein powder or and add more apple pie spice and ground cinnamon as well as additional sweetener to yield a similar flavor. A pure whey, casein or vegan protein powder can be used. Note that vegan protein powders absorb more liquid than whey or whey-casein blend so you will need to add additional milk.
- Cover with foil or cling wrap. If using a bowl or container that doesn’t have a lid, cover the bowl by wrapping a small sheet of aluminum foil or cling wrap around the rim. This is fine if eating the next day. However, if making several servings to consume during the week, it’s best to use a container with a lid such as a mason jar or meal prep container. This will ensure the overnight oats will taste fresh even after the first day.
- To meal prep: Double or triple the ingredients amounts by clicking the ‘2x’ or ‘3x’ buttons at the top of the recipe card if you’d like to make multiple servings for the week. Or multiply the ingredient amounts by the number of servings you’d like to make. Mix all the dry ingredients for the oats base in a large bowl, then mix in the wet ingredients and chopped apples. Divide evenly into bowls with lids, mason jars or meal prep containers. Refrigerate for up to 3-4 days. Note that they will increasingly thicken over the days in the fridge. You can stir in more milk in the morning to achieve your desired consistency if needed. It’s best to make the cinnamon apples and add the toppings just before eating so that the apples don’t brown excessively and the walnuts stay crunchy.
- Storing: The overnight oats without the toppings will keep for up to 3-4 days since there is a chopped apple incorporated in the oats base. However, overnight oats without any fruit can keep for up to 4-5 days if stored properly sealed airtight containers in the fridge. I personally feel they taste best when consumed within 3 days. After that, the texture starts to change too much and they don’t taste as fresh.
- Nutritional information is calculated with the chopped walnuts but without the pecan butter or other optional toppings.
- See the ‘Variations’ section in the post above if you’d like to customize these apple overnight oats.
Nutrition
- Serving Size: 1 serving (whole recipe)
- Calories: 426
- Sugar: 21.5g
- Sodium: 343mg
- Fat: 10.3g
- Saturated Fat: 1.7g
- Unsaturated Fat: 8.6g
- Trans Fat: 0g
- Carbohydrates: 54.3g
- Fiber: 12.6g
- Protein: 32.7g
- Cholesterol: 28.1mg
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