These Chocolate Brownie Overnight Oats with chocolate protein powder taste like dessert while delivering a creamy, rich texture—an excellent, healthy breakfast option.
If you want a straightforward, high-protein chocolate overnight oats recipe, this is it. It’s similar to a chocolate peanut butter variation but simpler and ideal for meal prep. Make several servings in under 10 minutes and have breakfasts ready for the week.
These chocolate protein overnight oats get most of their protein from plain Greek yogurt, chocolate protein powder, and the milk you choose. I like Greek yogurt for creaminess and tang; it keeps the texture thick and satisfying. This recipe is kid-friendly and doesn’t require heating, so it’s easy to grab from the fridge on busy mornings.
Why You’ll Love This Recipe
- Healthy: Nearly 30 g of protein per serving, plus complex carbs and fiber.
- Works as a chocolatey breakfast or a guilt-free dessert.
- Filling, creamy, and indulgent without being heavy.
- Highly customizable—add fruit, nuts, seeds, or nut butter as toppings.
- Easily made gluten-free with certified oats, or vegan by swapping Greek yogurt for plant milk and using a plant-based protein powder.
Key Ingredients
- Oats: Old-fashioned rolled oats give the best texture; steel-cut can be too chewy and instant can turn gummy.
- Cocoa powder: Adds deep chocolate flavor—don’t shy away from the amount called for.
- Chocolate protein powder: Enhances sweetness and chocolate notes while boosting protein.
- Greek yogurt: Plain, unsweetened yogurt creates creaminess and a pleasant tang.
- Agave nectar (or other sweetener): A mild-flavored sweetener that blends well; honey or maple also work.
- Milk: Adds creaminess and extra protein; use dairy or plant-based milk per preference.
See the recipe card below for exact quantities and full instructions.
Substitutions
- Sweetener: Use honey, maple syrup, brown sugar, or another preferred sweetener.
- Milk: Any milk—dairy or plant-based (almond, oat, coconut)—works and will affect creaminess.
- Greek yogurt: Swap for plain yogurt or increase milk; note more milk yields a looser texture.
Instructions
Step 1: In a bowl or sealable jar, combine the dry ingredients—rolled oats, cocoa powder, and chocolate protein powder (plus a pinch of salt if using).
Step 2: Stir in the Greek yogurt, milk, sweetener, and vanilla. The mixture will be loose at first—cover and refrigerate for at least 4 hours, ideally overnight. Serve cold or warm briefly if you prefer.
Overnight Oat Toppings
- Fruit: Fresh or frozen berries, cherries, sliced banana, or dried fruit all pair well with chocolate.
- Nuts and seeds: Pumpkin seeds, sunflower seeds, pecans, walnuts, or peanuts add crunch.
- Nut butters: Almond, peanut, cashew, or sunflower seed butter for extra richness.
- Chocolate: A few chocolate chips or a drizzle of a chocolate spread for extra indulgence.
- Other: Shredded coconut, chia seeds, flax, or hemp hearts for texture and nutrition.
Note: Toppings add calories; nutrition information below reflects the base recipe without toppings.
Top Tips
- Chill at least 4 hours—longer refrigeration results in softer, creamier oats.
- These are best served cold, inspired by Swiss muesli, which combines oats with yogurt or milk.
- Perfect for warm months when you want a refreshing breakfast or a cool dessert without cooking.
Frequently Asked Questions
Yes. Prepare multiple servings at once and store them in sealed containers in the fridge for quick breakfasts throughout the week.
Up to 5 days, as long as the milk and yogurt are within their expiration dates. Texture becomes softer over time.
Chia seeds, ground flax, hemp seeds, or oat bran will thicken the mixture. Stir in a splash of milk to thin if needed.
Milk combined with Greek yogurt provides the creamiest texture and adds protein. Unsweetened milk is best to let the oats take on added flavors.
Try applesauce, mashed banana, or coconut milk, though flavors and texture will vary.
More Easy Make-Ahead Breakfasts
If you enjoy high-protein make-ahead breakfasts, try other simple recipes like vanilla overnight oats, protein balls, or banana nut oatmeal for quick options you can prep in advance.
Vanilla Overnight Oats-
Lemon Coconut Protein Balls
-
Almond Butter Protein Balls
-
Banana Nut Oatmeal
Did you try this recipe? Leave a star rating and a comment below the recipe card. Share with friends and family if you enjoyed it—feedback helps other readers and is much appreciated.
Printable Recipe
Brownie Batter Overnight Oats
Ingredients
- ½ cup old-fashioned rolled oats
- 2 Tablespoons chocolate protein powder
- 1 Tablespoon cocoa powder
- ½ cup milk of choice
- ⅓ cup plain Greek yogurt
- ½ teaspoon vanilla extract
- 1 Tablespoon sweetener of choice (honey, maple, brown sugar)
- Pinch of salt (optional)
- Optional toppings: fruit, chocolate, nuts
Instructions
- In a sealable jar or container, mix oats, protein powder, cocoa powder, and salt (if using).
- Add milk, yogurt, vanilla, and your sweetener and stir until combined.
- Top with optional toppings if desired, cover, and chill for at least 4 hours or overnight.
Notes
Store refrigerated up to 5 days or until the dairy ingredients reach their expiration dates.
To thicken, add 1–2 teaspoons of chia or flax seeds. To thin, stir in a splash of milk.
Nutrition
Carbohydrates: 54 g
Protein: 29 g
Fat: 6 g
Fiber: 9 g
Sugar: 21 g