Easy PB2 Overnight Oats (+ Chocolate Option)
Creamy, peanut-buttery oats made with powdered PB2—ready to grab straight from the fridge.
PB2 overnight oats are one of the easiest ways to use powdered peanut butter in a simple, high-protein breakfast. If you’re looking for easy PB2 recipes or new overnight oats flavors, this one keeps things straightforward and reliable.
The PB2 is mixed into warm milk first so it fully dissolves—no clumps, no dry pockets—just smooth, evenly flavored oats with a creamy texture after soaking.
It’s perfect for breakfast meal prep, whether you keep it classic or go with the chocolate PB2 option for a slightly richer twist. Make it once, and you’ve got a ready-to-eat breakfast waiting in the fridge.
Why You’ll Love This Recipe
- Easy meal prep. Takes just a few minutes to mix, then the fridge does the rest—perfect for prepping breakfast ahead of time.
- Smooth peanut butter flavor. Mixing PB2 into warm milk gives you a creamy, evenly blended texture without clumps.
- Light but satisfying. You get that peanut butter taste from powdered peanut butter with fewer calories than regular peanut butter, while still keeping it filling.

Ingredients and Substitutes
- Rolled oats. The base of the recipe. Use old-fashioned rolled oats for the best texture—soft but not mushy after soaking.
- Chia seeds (optional). Help thicken the oats and give a slightly pudding-like texture. You can skip them, but the oats will be a bit looser.
- PB2 (powdered peanut butter). Adds peanut butter flavor without extra fat. Mixing it with warm milk helps it dissolve smoothly.
- Cocoa powder (for chocolate option). Adds a deep chocolate flavor.
- Milk. Regular, oat, or almond milk all work—use what you prefer or have on hand.
- White sugar. Adds a clean sweetness that works well with PB2. Maple syrup or honey can be used, but the flavor isn’t as good.
- Salt. Just a pinch enhances the peanut butter flavor and balances the sweetness.
Step-by-Step: How to Make PB2 Overnight Oats
- Warm the milk mixture. Combine milk, white sugar, PB2, cocoa powder (for the chocolate version) and a pinch of salt in a small pot. Warm over low heat, stirring until the sugar dissolves and the PB2 is fully smooth, about 1–2 minutes.
- Pour into your container. Transfer the warm mixture into a jar or container you’ll use for the oats.
- Add oats and chia. Stir in the rolled oats and chia seeds, making sure everything is fully combined and no dry spots remain.
- Refrigerate. Cover and refrigerate for at least 6 hours, or overnight, until the oats are thick and fully hydrated.
- Serve. Stir, add your favorite toppings if you like, and enjoy cold straight from the fridge.
Tips
- Don’t skip warming the milk. It helps the PB2 and sugar dissolve fully, which gives you a smoother texture and more even flavor.
- Stir well before chilling. Make sure there are no dry pockets of oats or chia—this prevents uneven texture later.
- Adjust thickness to preference. If it’s too thick in the morning, add a splash of milk and stir. Too thin? Add a bit more chia next time.
- Taste before serving. Especially for the chocolate version—cocoa powder can vary, so you may want a little extra sugar to balance it.
Storage
Store the oats sealed tightly in the fridge for 3 to 4 days.

Servings: 1 serving
Calories: 364kcal
Ingredients
- ½ cup rolled oats 50 g
- ½ tablespoon chia seeds 6 g, optional
- 2 tablespoons PB2 13 g
- ½ cup milk 120 g; regular, oat, or almond milk all work
- 2 teaspoons white sugar 9 g
- pinch salt
Instructions
- Warm Milk Mixture: Combine milk, white sugar, PB2, and a pinch of salt in a small pot. Warm over low heat and stir until the sugar dissolves, about 1–2 minutes.½ cup milk, 2 teaspoons white sugar, 2 tablespoons PB2, pinch salt
- Pour Into Jar: Pour the slightly warm PB2 and milk mixture into the jar or containers you’ll use to make the oats.
- Add Oats and Chia: Add rolled oats and chia seeds to the jar, then stir well so the oats are fully combined with the liquid.½ cup rolled oats, ½ tablespoon chia seeds
- Refrigerate 6+ Hours: Cover the jar and refrigerate for at least 6 hours (overnight is ideal) to allow the oats to soak and thicken.
- Serve With Toppings: Uncover and enjoy the chilled oats, adding your favorite toppings before serving.
Notes
Nutrition information calculated using oat milk. Treat these values as a rough estimate.
Notes & Tips:
- White sugar is probably the best sweetener option here. Maple or honey aren’t as good with PB2.
Nutrition
Calories: 364kcal | Carbohydrates: 56.6g | Protein: 16.8g | Fat: 8.7g | Fiber: 9.6g
Tried this recipe?Comment below or tag your snaps @definitelynotachefblog or #madewithdnac!

Servings: 1 serving
Calories: 393kcal
Ingredients
- ½ cup rolled oats 50 g
- ½ tablespoon chia seeds 6 g; optional
- 2 tablespoons PB2 13 g
- ½ cup milk 120 g; regular, oat, or almond milk all work
- 2 ½ teaspoons white sugar 11 g
- 1 teaspoon cocoa powder
- pinch salt
Instructions
- Warm the Mixture: Combine the milk, sugar, PB2, cocoa powder, and a pinch of salt in a small pot and stir until evenly mixed. Warm over low heat, stirring, until the sugar dissolves—this should take about 1–2 minutes.½ cup milk, 2 ½ teaspoons white sugar, 2 tablespoons PB2, 1 teaspoon cocoa powder, pinch salt
- Pour Into Jar: Pour the slightly warmed mixture into a jar or individual containers where you’ll prepare the oats.
- Add Oats and Chia: Add the rolled oats and chia seeds to the jar, then stir well to combine so the oats are evenly coated.½ cup rolled oats, ½ tablespoon chia seeds
- Chill Overnight: Cover the jar(s) and refrigerate for at least 6 hours (or overnight) to allow the oats to soften and thicken.
- Serve with Toppings: Remove from the fridge and serve cold, adding your favorite toppings if desired.
Notes
Nutrition information calculated using regular milk. Treat these values as a rough estimate.
Notes & Tips:
- White sugar is probably the best sweetener option here. Maple syrup or honey don’t pair as well with PB2.
Nutrition
Calories: 393kcal | Carbohydrates: 56.6g | Protein: 19g | Fat: 11.4g | Fiber: 9g
Tried this recipe?Comment below or tag your snaps @definitelynotachefblog or #madewithdnac!
Looking for More Recipes?
- Overnight Oats. Our mega guide that’ll take you from 0 to overnight oats hero in no time.
- PB2 Almond Milk Chia Pudding. Simple make-ahead breakfast or snack, flavored with PB2.
- PB2 Cottage Cheese Smoothie. High protein smoothie made with PB2 and cottage cheese.
- PB2 Yogurt Bowl. Quick protein-packed breakfast or snack.


