These High Protein Apple Cinnamon Overnight Oats are creamy, filling, and packed with cozy apple pie flavor. They take just a few minutes to make, and breakfast is ready when you wake up. It’s one of my favorite meal prep breakfasts because it’s easy, tastes great, and keeps me full for hours.
Servings: 2
Prep Time: 10 minutes
Chill Time: 6-8 hours (overnight)
Total Time: About 8 hours
Why I Love This Recipe
I started making these overnight oats when I wanted a breakfast that was filling without taking extra time in the morning. After trying different versions, adding Greek yogurt and protein powder made a huge difference. The oats became creamy, the apples stayed fresh, and the cinnamon made everything taste like apple pie. Now it’s one of the breakfasts I make almost every week because it’s simple, reliable, and easy to prepare ahead.
What makes this recipe special:
- High in protein to help keep you full longer.
- Easy to make the night before.
- Naturally sweet from fresh apples.
- Creamy without needing heavy cream.
- Great for meal prep.
- Easy to customize with different toppings.
What You’ll Need
- 1 cup old-fashioned rolled oats
- 1 cup unsweetened vanilla almond milk
- ½ cup plain nonfat Greek yogurt
- 1 scoop (30 grams) vanilla protein powder
- 1 medium apple, diced (about 1 cup)
- 1 tablespoon chia seeds
- 1 teaspoon ground cinnamon
- ½ teaspoon vanilla extract
- 1 teaspoon honey (optional)
- 2 tablespoons chopped walnuts (optional topping)
Pro Tips
- Dice the apple into small pieces so every bite has a little apple.
- Mix the protein powder completely before chilling to prevent lumps.
- Let the oats chill at least 6 hours for the best texture.
- Stir well before eating if the oats become very thick.
- Add walnuts right before serving so they stay crunchy.
Tools
- Large mixing bowl
- Silicone spatula or spoon
- Measuring cups
- Measuring spoons
- Sharp knife
- Cutting board
- 2 glass jars or containers with lids
Substitutions and Variations
- Use dairy milk instead of almond milk.
- Swap Greek yogurt for dairy-free yogurt.
- Use maple syrup instead of honey.
- Replace walnuts with pecans or almonds.
- Add raisins or dried cranberries.
- Mix in pumpkin pie spice for extra flavor.
- Use chocolate protein powder for a different taste.
Make Ahead Tips
- Make up to 4 jars at once for easy breakfasts.
- Store in the refrigerator for up to 4 days.
- Add fresh toppings just before serving.
Why This Recipe Works (Quick Science)
Rolled oats slowly absorb the liquid overnight. This softens the oats without cooking them. Chia seeds soak up moisture and help thicken the mixture into a creamy texture. Greek yogurt adds extra protein while also making the oats richer and smoother. Protein powder blends with the yogurt and milk, increasing the protein without making the oats too heavy. The cinnamon adds flavor while the fresh apples bring natural sweetness and moisture.
Recipe
Step 1: Mix the Base
In a large mixing bowl, add 1 cup old-fashioned rolled oats, 1 scoop (30 grams) vanilla protein powder, 1 tablespoon chia seeds, and 1 teaspoon ground cinnamon. Stir until everything is evenly combined. Add 1 cup unsweetened vanilla almond milk, ½ cup plain nonfat Greek yogurt, ½ teaspoon vanilla extract, and 1 teaspoon honey if using. Stir very well until the protein powder is fully dissolved and the mixture is smooth with no dry spots.
Step 2: Add the Apples
Fold 1 cup diced fresh apple into the oat mixture. Stir gently until the diced apples are evenly spread throughout the creamy mixture.
Step 3: Fill the Jars
Divide the oat mixture evenly between 2 glass jars. Smooth the tops with a spoon. Seal each jar tightly with its lid.
Step 4: Chill Overnight
Place the sealed jars into the refrigerator for 6 to 8 hours or overnight. The oats and chia seeds will absorb the liquid and become thick and creamy.
Step 5: Add Toppings and Serve
Remove the jars from the refrigerator. Stir the oats. Top each serving with thin fresh apple slices, 1 tablespoon chopped walnuts, and a light sprinkle of ground cinnamon. Serve in a round white bowl if desired.
Macros Information
Per Serving (Approximate)
- Calories: 355
- Protein: 28g
- Carbohydrates: 37g
- Fat: 10g
- Fiber: 8g
- Sugar: 12g
Common Mistakes
- Using quick oats instead of rolled oats can make the texture too soft.
- Not mixing the protein powder completely may leave lumps.
- Skipping the overnight chill can leave the oats chewy.
- Cutting the apples too large makes the texture uneven.
- Adding walnuts too early makes them lose their crunch.
What to Serve With
- Fresh berries
- Hard-boiled eggs
- Cottage cheese
- Turkey sausage
- Hot coffee
- Green tea
- Fresh orange slices
Leftovers and Storage
- Store covered in the refrigerator for up to 4 days.
- Stir before serving if the oats become very thick.
- Add fresh toppings just before eating.
- Not recommended for freezing because the texture changes after thawing.
FAQ
Q: Can I use quick oats?
A: Yes, but the oats will be much softer after chilling overnight.
Q: Can I make this without protein powder?
A: Yes. The oats will still be delicious, but they will have less protein.
Q: Can I use another fruit?
A: Absolutely. Pears, blueberries, strawberries, or peaches all work well.
Q: Can I eat these warm?
A: Yes. Heat them gently in the microwave for about 45 to 60 seconds.
Q: How long do overnight oats last?
A: They stay fresh in the refrigerator for up to 4 days.
Final Thoughts
If you’re looking for a simple breakfast that’s creamy, satisfying, and packed with protein, these Apple Cinnamon Overnight Oats are a great choice. They come together in just a few minutes, are easy to make ahead, and taste like a comforting bowl of apple pie in the morning. Give them a try, then come back and share how they turned out and any fun twists you added.