High Protein Cookie Dough Overnight Oats

These high protein cookie dough overnight oats taste like dessert but pack 25+ grams of protein per jar — your new make-ahead breakfast for busy mornings.

High protein cookie dough overnight oats are a no-cook breakfast made with rolled oats, vanilla protein powder, milk, nut butter, and mini chocolate chips. They soak in the fridge overnight and taste like edible cookie dough — but with the protein and fiber to actually keep you full.

I’ve made these on repeat for over a year now, and they’re the recipe I send people when they tell me they hate oatmeal. The vanilla protein powder, brown sugar (or maple syrup), and a swirl of cashew butter do the heavy lifting on flavor — it really does taste like cookie dough.

If you love overnight oats, you’ll also want to try my Cookies and Cream Overnight Oats, Strawberries and Cream Overnight Oats, and Biscoff Overnight Oats.

Why You’ll Love These Cookie Dough Overnight Oats

• Tastes exactly like cookie dough — vanilla, brown sugar, and cashew butter nail the flavor
• Packed with 25+ grams of protein thanks to protein powder, no cottage cheese or Greek yogurt required
• Ready in 5 minutes the night before — wake up to breakfast already done
• Meal-prep friendly — double or triple the recipe for the whole week
• Naturally gluten-free and easy to make vegan with simple swaps

Ingredients

• Rolled oats — the base. Old-fashioned rolled oats give the best texture. Skip steel-cut (too chewy) and quick oats (too mushy).
• Vanilla protein powder — the secret to cookie dough flavor AND 25+ grams of protein. Whey and plant-based both work. I use PEScience Vanilla (code BAILEY).
• Chia seeds — thicken the oats and add fiber and healthy fats.
• Unsweetened almond milk — any milk works, but unsweetened almond keeps the calories and sugar low.
• Cashew butter — the cookie dough flavor pillar. Almond or peanut butter work too but have a stronger flavor.
• Pure maple syrup — a touch of natural sweetness. Brown sugar also works and tastes even more like classic cookie dough.
• Vanilla extract — essential for that real cookie dough flavor.
• Mini chocolate chips — because cookie dough needs chocolate chips. Mini ones distribute better.
• Pinch of salt — balances the sweetness and brings out the cookie dough flavor.

Find the full ingredient list with measurements in the recipe card below.

How to Make Cookie Dough Overnight Oats

1. In a mason jar or container with a lid, add the oats, protein powder, chia seeds, and salt. Stir to combine.
2. Pour in the almond milk, then add the cashew butter, maple syrup, and vanilla. Stir until fully smooth and combined.
3. Fold in the mini chocolate chips.
4. Cover and refrigerate for at least 4 hours, or overnight. In the morning, give it a stir, add a splash of milk if you want it thinner, and top with extra chocolate chips or a drizzle of nut butter.

Tips for the Best Cookie Dough Overnight Oats

• Use rolled oats, not quick or steel-cut. Quick oats turn mushy and steel-cut stay chewy. Rolled oats are the only way.
• Let them sit at least 4 hours, but overnight is best. This gives the chia seeds time to thicken everything to that classic cookie dough texture.
• Adjust the liquid based on your protein powder. Plant-based protein absorbs more liquid than whey, so you may need a splash more milk in the morning.
• Don’t skip the pinch of salt. It’s the difference between “oats with chocolate chips” and actual cookie dough flavor.

How to Store & Meal Prep

These are perfect for meal prep. Make a batch on Sunday and breakfast is sorted for the week.

• Refrigerator: Store in an airtight container or mason jar for up to 4–5 days.
• To meal prep: Double or triple the recipe and portion into individual jars before refrigerating.
• Before serving: Give the oats a stir and add a splash of milk if they got too thick overnight.

Frequently Asked Questions

Do cookie dough overnight oats actually taste like cookie dough?

Yes — the combination of vanilla protein powder, vanilla extract, cashew butter, maple syrup, and mini chocolate chips creates a flavor that’s genuinely close to raw cookie dough. It won’t be identical to a spoonful of Pillsbury, but it scratches the craving.

Can I make cookie dough overnight oats without protein powder?

You can, but you’ll lose the cookie dough flavor and drop to about 10g of protein per serving. If you skip the protein powder, increase the cashew butter to 1 tablespoon and add an extra teaspoon of vanilla extract.

How long do cookie dough overnight oats last in the fridge?

Up to 4–5 days in an airtight container. The texture will thicken over time, so just stir in a splash of milk before eating.

Can I use steel-cut or quick oats?

No. Steel-cut oats stay chewy and won’t soften properly, and quick oats turn mushy. Old-fashioned rolled oats are the only kind that work for overnight oats.

More Overnight Oats Recipes You’ll Love

• Cinnamon Overnight Oats
• Blueberry Cheesecake Overnight Oats
• Peanut Butter & Jam Overnight Oats
• Easy Coconut Overnight Oats
• Peaches & Cream Overnight Oats
• Gluten Free Key Lime Pie Overnight Oats

If you made these cookie dough overnight oats, please leave a star rating and a comment below — it genuinely helps the recipe reach more people. Snap a photo and tag @basicswithbails on Instagram or share on Pinterest — I love seeing your creations.