If you’re the kind of person who sneaks a spoonful of brownie batter from the bowl (no shame!), you’re going to fall in love with these Blended Brownie Batter Overnight Oats. Creamy, chocolatey, naturally sweet, and made in a blender — this breakfast tastes like dessert but is packed with wholesome ingredients to keep you full and energized.
With a smooth pudding-like texture, rich cocoa flavor, and customizable toppings, these oats make for a meal-prep-friendly, gluten-free, and nutrient-dense breakfast you’ll actually look forward to.
Ingredients Overview: What Makes It Taste Like Brownie Batter?
These oats blend pantry staples into a velvety chocolate dream. Here’s what each ingredient brings:
Core Ingredients:
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Rolled Oats (Old-Fashioned): The fiber-rich base. Once blended, they create a silky texture.
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Milk of Choice: Use almond milk, oat milk, dairy, or coconut milk — whatever fits your needs. Thicker milks yield creamier oats.
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Greek Yogurt (Optional): Adds protein and makes it extra creamy (can be replaced with a dairy-free yogurt).
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Cocoa Powder (Unsweetened): The star of the show, providing deep chocolate flavor.
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Maple Syrup or Honey: Naturally sweetens the oats while complementing the cocoa.
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Chia Seeds: Help thicken and boost fiber and omega-3s.
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Vanilla Extract: Enhances the chocolate flavor for that brownie batter vibe.
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Pinch of Salt: Balances sweetness and deepens cocoa flavor.
Optional Add-ins:
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Chocolate Chips or Chunks: For extra indulgence — fold them in after blending.
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Nut Butter (Peanut, Almond, or Hazelnut): Adds richness and healthy fats.
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Protein Powder (Chocolate or Vanilla): For a protein boost — great post-workout.
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Espresso Powder: A pinch intensifies the chocolate flavor (think mocha vibes).
Step-by-Step Instructions: Blend, Chill, and Enjoy

1. Blend the Base
In a blender or food processor, combine:
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½ cup rolled oats
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¾ cup milk of choice
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¼ cup Greek yogurt (optional but recommended)
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1½ tablespoons cocoa powder
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1 tablespoon maple syrup (or more to taste)
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1 tablespoon chia seeds
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¼ teaspoon vanilla extract
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Pinch of salt
Blend on high for 30–60 seconds, until completely smooth and creamy.
Note: For a thicker texture, reduce milk slightly. For looser oats, add more milk after blending.
2. Adjust Sweetness and Texture
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Taste and adjust sweetness — add a little more maple syrup or a few stevia drops if needed.
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Blend in 1 tablespoon nut butter or a few chocolate chips for extra richness.
3. Pour and Chill
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Pour the blended oat mixture into a jar or container with a lid.
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Refrigerate overnight (or at least 4 hours) to allow the chia seeds to thicken the mixture.
4. Add Toppings and Serve
The next morning, stir the oats and top with:
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Mini chocolate chips
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Banana slices or berries
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Peanut butter drizzle
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Coconut flakes or crushed nuts
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Sea salt flakes (game-changer!)
Serve cold for a pudding-like breakfast, or microwave for 30 seconds if you prefer warm oats.
Tips, Variations & Substitutions
Tips for Best Texture:
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Use a high-speed blender for the smoothest result.
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Let it sit overnight — chia seeds need time to fully hydrate.
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Don’t skip the salt! It intensifies the chocolate flavor beautifully.
Flavor Variations:
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Mocha Brownie Oats: Add ½ tsp espresso powder to the blend.
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Mint Chocolate: Add a tiny splash of peppermint extract.
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Chocolate PB Cup: Blend in peanut butter and top with crushed peanuts.
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Cherry Brownie: Add frozen cherries into the blend or as a topping.
Ingredient Substitutions:
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Vegan: Use non-dairy yogurt or omit. Use maple syrup and plant-based milk.
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Gluten-Free: Be sure to use certified gluten-free oats.
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Nut-Free: Use oat or rice milk and sunflower butter for allergen-free oats.
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Sugar-Free: Replace maple syrup with monk fruit sweetener or stevia.
Serving Ideas & Occasions
This indulgent but wholesome breakfast is perfect for:
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Meal prep — Make 3–4 jars for the week
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Post-workout recovery — Add protein and top with banana
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Healthy dessert — It tastes just like pudding!
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Back-to-school breakfasts — Kid-friendly and portable
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Late-night snacks — Satisfies chocolate cravings in a nourishing way
Nutritional & Health Notes
These oats strike the perfect balance between indulgent and nourishing:
Nutritional Benefits:
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Fiber-Rich: Oats + chia seeds = digestion-friendly and filling
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Heart-Healthy Fats: From nut butters or chia
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Protein-Packed: Especially with yogurt and optional protein powder
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Antioxidants: Cocoa powder is a surprising source!
Lightening It Up:
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Use unsweetened almond milk and low-fat Greek yogurt
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Omit chocolate chips and reduce maple syrup
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Use fruit (like mashed banana or date paste) as a natural sweetener
Frequently Asked Questions (FAQs)
1. Do I have to blend the oats?
Blending is what gives this dish its silky “brownie batter” texture. If you skip blending, you’ll get a more traditional overnight oats consistency, which is still tasty — just not as pudding-like.
2. How long do blended overnight oats last?
Stored in an airtight jar, they’ll last up to 4 days in the fridge. Perfect for prepping a few breakfasts at once.
3. Can I eat these warm?
Yes! Just microwave for 30–60 seconds, stir, and enjoy. You may want to add a splash of milk after reheating.
4. Can I make this high-protein?
Absolutely. Add 1 scoop of chocolate or vanilla protein powder and increase the milk slightly (about ¼ cup more) to keep the texture smooth.
5. Is this recipe keto-friendly?
Not as written — oats are too high in carbs for keto. For a keto version, try blending chia seeds, almond flour, cocoa, and nut milk for a similar flavor profile without the oats.
6. What’s the best milk to use?
Any milk works! Almond, oat, coconut, cow’s milk — each will give slightly different textures and flavors. For extra creaminess, use oat or coconut milk.
7. Can I double or triple the recipe?
Yes! Just blend all the ingredients at once, divide into jars or containers, and refrigerate. This makes for a great grab-and-go breakfast all week.