Cookie dough for breakfast—with 41 grams of protein per serving. These cookie dough overnight oats are simple to make, nutrient-dense, and so satisfying they’ll have you craving overnight oats every morning.

If you like high-protein breakfasts, try my other easy overnight oat recipes: 4-ingredient protein overnight oats, cottage cheese overnight oats, and Nutella overnight oats.
Recipe Highlights
- Fast: Ready in five minutes—just mix, chill, and go. This is an ideal meal-prep breakfast for busy mornings.
- Digestive support: Each serving contains 7 grams of dietary fiber to promote healthy digestion and steady energy.
- Deliciously satisfying: It tastes like cookie dough but delivers a balanced meal with protein and fiber.
- Portable: Make several jars at once for grab-and-go breakfasts throughout the week.
Key Ingredients and Swaps

- Large flake oats: Also called rolled or old-fashioned oats. They soak up liquid well while keeping a pleasant chew. Quick oats are an acceptable swap; avoid instant or steel-cut oats.
- Vanilla protein powder: Use a flavored powder—vanilla works best for this recipe to create that cookie-dough taste.
- Powdered peanut butter: This adds peanut flavor with fewer calories and more protein than regular peanut butter. You can use it in the mix and add creamy peanut butter as a topping.
- Ground flaxseed: Adds a nutty flavor and healthy fats—an important texture and nutrition boost for these oats.
See the recipe card below for the full ingredient list and exact measurements.
How to Make

Step 1: Add all overnight oat ingredients (except toppings) to a jar or container.

Step 2: Stir until smooth, cover, and refrigerate for at least four hours or overnight. Add toppings just before eating.
Topping Suggestions
I like a generous scoop of natural peanut butter and a sprinkle of mini chocolate chips. Other tasty options:
- Crushed nuts: 1–2 tablespoons of chopped peanuts, walnuts, pecans, or cashews.
- Seeds: A few teaspoons of hemp hearts or chia seeds for extra texture.
- Other nut butters: Cashew, almond, or any seed butter if you prefer.
- Fruit: 1/2 a sliced banana or 1/2 cup mixed berries (fresh or frozen).
- Dried fruit: Swap chocolate for raisins, dried cranberries, chopped dates, or apricots.
- Indulgent extras: Chopped dark chocolate, granola, jam, or a spoonful of Nutella.
Common Questions
These overnight oats keep in the refrigerator for up to four days. Stir well before chilling and before eating if separated.
You can substitute whole chia seeds, though the flavor and texture will differ slightly.
Use a plant-based protein powder and a plant milk like soy or almond, and replace Greek yogurt with extra milk or a dairy-free yogurt.

More Recipes With Oats
Peanut Butter & Jelly Overnight Oats
Blueberry Cheesecake Overnight Oats
Apple Cinnamon Oatmeal
Trail Mix Bars

Cookie Dough Overnight Oats
Equipment
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glass jar or meal-prep container
Ingredients
Overnight Oats
- ½ cup large flake oats
- 1 scoop vanilla protein powder
- 1 Tbsp powdered peanut butter
- 1 Tbsp ground flaxseed
- pinch salt
- ½ cup milk
- ¼ cup plain Greek yogurt
- ½ tsp vanilla extract
- maple syrup, to taste (optional)
Topping Ideas
- 1-2 Tbsp chocolate chips
- natural peanut butter
- sliced banana
Instructions
-
Add all ingredients for the overnight oats to your jar or container, excluding toppings. Stir until completely smooth and free of clumps.
-
Cover and refrigerate for at least 4 hours, or preferably overnight.
-
When ready to eat, stir, add your preferred toppings, and enjoy.
Notes
- Do not use unflavored protein powder—vanilla or another flavored powder gives the best taste.
- If you need gluten-free, choose certified gluten-free oats.
- Opt for low-sugar protein powder and chocolate chips if you prefer fewer added sugars.
- Nutrition facts are calculated without toppings and are provided as an approximation.
Nutrition
| Carbohydrates: 47g
| Protein: 41g
| Fat: 14g
| Fiber: 7g
| Sugar: 11g
Nutrition information is automatically calculated and should be used as an approximation.
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