Chocolate Peanut Butter Protein Overnight Oats

Creamy chocolate peanut butter overnight oats with 24g of protein per serving. A 5-minute, one-jar breakfast that tastes like a Reese’s Peanut Butter Cup — gluten-free and easily made vegan.

Chocolate peanut butter overnight oats are a no-cook breakfast made by mixing oats, chia seeds, cocoa powder, chocolate peanut butter protein powder, peanut butter, maple syrup, and almond milk in a jar, then refrigerating overnight. One serving packs 24g of protein and 359 calories — it tastes like a Reese’s Peanut Butter Cup in oat form and takes 5 minutes to prep.

This is a one-jar, mix-everything-together recipe. No separate ganache layer, no fussy assembly — just stir it up before bed and grab it on your way out the door in the morning.

If you love this, also try my Biscoff Overnight Oats, Birthday Cake Overnight Oats, or Tiramisu Protein Overnight Oats next.

Why You’ll Love This Recipe

• 24g of protein per serving from chocolate peanut butter protein powder + peanut butter
• 5 minutes of prep — stir it all together, refrigerate, done
• One jar, no layers — easiest overnight oats recipe in my arsenal
• Naturally gluten-free and easily made vegan with plant-based protein powder

Ingredients You’ll Need

(Full measurements in the recipe card at the bottom of the post.)

• Old-fashioned rolled oats — best texture for overnight oats. Quick oats work but get soggier. Steel-cut won’t soften without cooking. Use certified gluten-free if needed.
• Unsweetened almond milk — neutral flavor. Vanilla almond milk works too and adds extra flavor. Oat, cashew, coconut, soy, or regular milk all work.
• Unsweetened cocoa powder — for that real chocolate depth. Natural cocoa works; Dutch-processed gives a deeper, less acidic chocolate flavor.
• Chocolate peanut butter protein powder — I use PEScience Chocolate Peanut Butter protein powder (code BAILEY saves you). Plain chocolate or peanut butter protein both work as swaps. Vegan/plant-based protein works for a vegan version.
• Chia seeds — absorb liquid and thicken the oats overnight. Flax seeds work as a 1:1 swap.
• Natural peanut butter — use creamy natural peanut butter, not the stabilized Jif/Skippy kind. Natural peanut butter is drippy and mixes in evenly. If yours is cold from the fridge, microwave for 5-10 seconds first. Almond butter, cashew butter, or sunflower seed butter (for nut-free) all work.
• Maple syrup — light sweetness. Honey works as a swap if you’re not vegan.
• Mini chocolate chips — optional, but they melt slightly into the oats and add chocolate pockets. Cacao nibs work for less sugar.

How to Make Chocolate Peanut Butter Protein Overnight Oats

1. Combine everything in one jar. Add the oats, almond milk, cocoa powder, protein powder, chia seeds, peanut butter, and maple syrup to a mason jar or container.
2. Stir well. Mix until the cocoa powder and protein powder are fully dissolved with no dry pockets. This step matters — clumps of cocoa powder won’t dissolve later.
3. Add chocolate chips if using, and give one more quick stir.
4. Refrigerate for at least 4 hours, ideally overnight.
5. In the morning — give a quick stir and eat. Cold straight from the fridge or warm briefly in the microwave (60-90 seconds).

Tips for the Best Texture

1. Stir the cocoa powder in fully. Cocoa powder clumps if you rush this step. Mix until you can’t see any dry brown bits — about 30 seconds of stirring.
2. Use natural drippy peanut butter. Stabilized peanut butter (Jif, Skippy) is harder to incorporate evenly. Natural peanut butter mixes smoothly and gives you that real peanut butter flavor throughout.
3. Warm cold peanut butter first. 5-10 seconds in the microwave makes it drippy enough to stir in easily — especially if it’s been in the fridge.
4. Use rolled oats, not quick or steel-cut. Rolled oats absorb evenly and stay slightly chewy. Quick oats turn to mush overnight.
5. Adjust the liquid in the morning if needed. Some protein powders absorb more liquid than others. If your oats are too thick in the morning, stir in another splash of almond milk. Too thin? Stir in another teaspoon of chia seeds and wait 10 minutes.

Mix-In Variations

• PB2 swap: Sub 1-2 tablespoons of powdered peanut butter (PB2 or PB Fit) for regular peanut butter — drops calories and bumps protein
• PB&J twist: Skip the cocoa powder and stir in 1 tablespoon of raspberry jam, or top with fresh raspberries
• Nutella version: Swap peanut butter for hazelnut butter or Nutella, use chocolate protein powder instead of chocolate peanut butter
• Dark chocolate: Double the cocoa powder and add 1-2 tablespoons of maple syrup to balance
• Banana chocolate peanut butter: Slice ½ banana on top in the morning — chocolate, peanut butter, banana is unbeatable
• Snickers style: Add 1 tablespoon of crushed peanuts and 1 teaspoon of sugar-free caramel syrup
• Greek yogurt swirl: Stir in ¼ cup of plain Greek yogurt before refrigerating for an extra creamy, higher-protein version (pushes protein over 30g)
• Dairy-free / vegan: Use plant-based chocolate protein powder, dairy-free chocolate chips, and any non-dairy milk

How to Store and Meal Prep

• Fridge: Store sealed jars for up to 4 days. The oats get softer and creamier the longer they sit.
• Meal prep tip: Make 3-4 jars at once. This is the easiest overnight oats recipe in my rotation to batch — no separate layers, no fussy assembly.
• Best containers: Wide-mouth mason jars (16 oz), meal prep containers, or any airtight container.
• Save toppings for the morning — add fresh fruit, banana slices, or extra peanut butter drizzle right before eating to keep textures intact.
• Don’t freeze — texture suffers when thawed.

More Overnight Oats Recipes

• Banana Cream Pie Overnight Oats
• Lemon Cheesecake Overnight Oats
• Strawberry Cheesecake Overnight Oats
• Carrot Cake Overnight Oats
• Gluten Free Key Lime Pie Overnight Oats
• Apple Pie Overnight Oats

If you tried these chocolate peanut butter protein overnight oats, please leave a star rating and a comment below — it genuinely helps other readers find the recipe. Share your version on Instagram or Pinterest and tag @basicswithbails or #basicswithbails.