Creamy Brownie Batter Overnight Oats topped with chocolate shavings in a glass jar.

Brownie Batter Overnight Oats

Brownie Batter Overnight Oats are a fun and tasty way to enjoy a classic dessert flavor first thing in the morning. This recipe blends rich cocoa powder, a touch of…

By Riley Reading time: 6 min
Tip: save now, cook later.
Serves 4–6

Brownie Batter Overnight Oats are a fun and tasty way to enjoy a classic dessert flavor first thing in the morning. This recipe blends rich cocoa powder, a touch of sweetness, and creamy oats that soak up all those flavors overnight, giving you the fudgy goodness of brownie batter in a healthy and convenient breakfast.

I love making these the night before because when I wake up, I have a ready-to-eat treat waiting for me that feels like a special indulgence but is actually good for me. Adding a few chocolate chips or a drizzle of nut butter on top makes it even better and gives a nice texture contrast. It’s like starting the day with a little celebration in a jar!

These oats are perfect for busy mornings when you want something quick but don’t want to skip flavor. I usually eat mine straight from the fridge, but if you prefer it warm, a quick zap in the microwave works great too. This breakfast always makes me feel like I’m treating myself while still keeping things simple and wholesome.

Key Ingredients & Substitutions

Rolled oats: These give the creamy texture after soaking. If you want something quicker, you can use instant oats, but the texture will be softer and less chewy.

Cocoa powder: Unsweetened cocoa adds that rich chocolate flavor like brownie batter. If you don’t have cocoa, you can try using chocolate protein powder or hot cocoa mix, but adjust the sweetness.

Chia seeds: These help thicken the oats and add fiber. If you’re not a fan, you can skip them and just add a little more oats or reduce the milk slightly for thickness.

Maple syrup or honey: Both naturally sweeten the oats. Use whichever suits your taste or diet. For a sugar-free choice, try mashed banana or a sugar substitute.

Milk of choice: Dairy or plant-based milks like almond, oat, or soy work well here. Choose based on your preference or dietary needs.

Nut butter: Adds richness and a creamy mouthfeel. Peanut or almond butter work great, but feel free to swap for sunflower seed butter if allergic to nuts.

Chocolate chips and nuts: Using chocolate chips inside and on top gives bursts of chocolatey bites. Nuts add crunch that contrasts nicely with soft oats. Substitute with dairy-free chocolate chips and seeds if needed.

How Do I Get the Perfect Thick and Creamy Texture for Overnight Oats?

The key to great overnight oats is soaking them long enough for the oats and chia seeds to absorb the liquid fully. Follow these simple tips:

  • Use rolled oats, not quick oats, for a chewy but creamy bite.
  • Mix the oats well with milk and chia seeds so they’re evenly hydrated.
  • Refrigerate at least 6 hours, or overnight for best results.
  • If overnight is too long, even 4 hours works, but texture will be less creamy.
  • Stir well in the morning to mix any separated liquid back in.
  • Add toppings just before eating to keep crunch fresh.

If it’s too thick in the morning, stir in a splash more milk until you reach your favorite consistency. For warmer oats, zap it in the microwave for 30-60 seconds, stirring halfway through.

Equipment You’ll Need

  • Mason jar or airtight container – perfect for mixing and storing overnight oats without spills.
  • Measuring cups and spoons – help you get the right amounts of oats, cocoa, and liquid every time.
  • Spoon or small whisk – makes mixing the ingredients simple and keeps the oats smooth.
  • Small bowl (optional) – handy if you prefer mixing before transferring to jars.

Flavor Variations & Add-Ins

  • Add a scoop of peanut butter for a nutty twist that pairs perfectly with the chocolate.
  • Swap chocolate chips for white chocolate or butterscotch chips to change the flavor profile.
  • Mix in fresh or frozen raspberries for a tart contrast to the rich cocoa.
  • Stir in a pinch of espresso powder to deepen the chocolate taste and add a coffee kick.

Easy Brownie Batter Overnight Oats

Brownie Batter Overnight Oats

Ingredients You’ll Need:

  • 1/2 cup rolled oats
  • 1 tablespoon unsweetened cocoa powder
  • 1 tablespoon chia seeds (optional, for thickness and nutrition)
  • 1 tablespoon maple syrup or honey (adjust to taste)
  • 1/2 teaspoon vanilla extract
  • 1/4 teaspoon ground cinnamon (optional, to enhance brownie flavor)
  • Pinch of salt
  • 1/2 cup milk of choice (dairy, almond, oat, etc.)
  • 1 tablespoon peanut butter or almond butter (optional for richness)
  • 2 tablespoons chocolate chips or chunks, divided
  • 1 tablespoon chopped walnuts or pecans, for topping
  • Drizzle of chocolate or caramel sauce (optional, for garnish)

Time You’ll Need:

This recipe takes about 5 minutes to prepare, plus at least 6 hours of chilling time in the refrigerator. The overnight soaking is key to achieving the creamy, thick texture.

Step-by-Step Instructions:

1. Mix the Ingredients:

In a medium bowl or directly into a jar, combine the rolled oats, cocoa powder, chia seeds (if using), maple syrup, vanilla extract, cinnamon, and a pinch of salt.

2. Add Milk and Nut Butter:

Pour in your chosen milk and stir everything together until the ingredients are nicely blended. If you want extra creaminess, stir in the peanut or almond butter now.

3. Add Chocolate Chips:

Fold about half of the chocolate chips into the oat mixture to spread delicious chocolatey pockets throughout.

4. Refrigerate Overnight:

Cover the jar or bowl and place it in the fridge. Let it sit overnight or for at least 6 hours so the oats and chia seeds absorb the liquid and become thick and creamy.

5. Serve and Enjoy:

In the morning, give your oats a good stir to combine everything again. Top with the remaining chocolate chips and chopped nuts for a nice crunch. If you like, add a drizzle of chocolate or caramel sauce for that indulgent finish. You can eat it cold straight from the fridge or warm it up slightly in the microwave.

Can I Use Instant Oats Instead of Rolled Oats?

Yes, you can use instant oats, but the texture will be softer and less chewy. They also absorb liquid faster, so reduce the soaking time to about 4 hours for best results.

Can I Make This Recipe Vegan?

Absolutely! Use a plant-based milk like almond, oat, or soy milk, and choose a vegan sweetener such as maple syrup. Ensure your chocolate chips are dairy-free as well.

How Long Can I Store Overnight Oats?

Store the prepared oats in an airtight container in the refrigerator for up to 3 days. Stir before eating, and add extra milk if they’ve thickened too much.

Can I Prepare Multiple Servings at Once?

Yes! Simply multiply the ingredients and divide the mixture into individual jars or containers for easy grab-and-go breakfasts throughout the week.

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Writes practical, weeknight-friendly recipes.

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