Blender Brownie Baked Oats

If a brownie and a bowl of oatmeal had a breakfast baby, this would be it. Blender brownie baked oats are rich, fudgy, and chocolatey enough to feel like a treat, but they’re made with simple ingredients like oats and banana. You blend everything in one go, pour it into a dish, and after a short bake you have a warm, gooey chocolate oatmeal that tastes way more indulgent than it is.

It’s the kind of breakfast that makes a weekday morning feel a little special, and the blender does all the work. No stovetop stirring, no separate bowls.

Why I Keep Making These Blender Oats

This recipe has become my favourite no-fuss breakfast because it’s quick, reliable, and scratches a serious chocolate itch without leaving me sluggish. The banana provides natural sweetness and keeps the oats soft, so you only need a little maple syrup.

The texture is dense and fudgy, with a crackly top and tender, almost brownie-like inside. Chocolate chips on top melt into puddles. Cleanup is one blender jar and one dish, and the oven does the work while you get ready.

Ingredients

• 1 cup rolled oats: old-fashioned oats are best here; quick oats work but yield a slightly softer texture.
• 1 large ripe banana: the spottier, the sweeter.
• 2 tbsp unsweetened cocoa powder: Dutch-processed gives a deeper colour, but natural works fine.
• 1/4 cup milk of choice: oat, almond, or whole dairy milk all work.
• 1 large egg: provides structure and richness.
• 2 tbsp maple syrup or honey: adds just enough sweetness without making it cloying.
• 1 tsp vanilla extract: rounds out the chocolate flavour.
• 1/2 tsp baking powder: gives the oats a gentle lift so they don’t end up dense and gummy.
• Pinch of salt: brightens the chocolate.
• 2 tbsp chocolate chips, plus extra for topping: semi-sweet or dark chips are great.

Easy Swaps and Add-Ins

• Swap the sweetener: agave nectar or brown sugar (use 2 tbsp packed) work instead of maple syrup.
• Add a nut butter swirl: drop a spoonful of almond or peanut butter on top of the batter and swirl it in with a knife before baking for a marbled effect.
• Boost the chocolate: stir in 1/2 tsp instant espresso powder with the cocoa for even deeper chocolate flavour.
• Make it dairy-free: use a plant-based milk and dairy-free chocolate chips. For a fully vegan version, see the FAQ below.
• Top with something crunchy: a sprinkle of chopped walnuts or a few crushed pretzels on top adds contrast.

If you enjoy this, you might also like Banana Bread Baked Oats, which use the same blender method and taste like a slice of warm, spiced banana bread.

How to Make Brownie Baked Oats

Step 1: Blend the Batter

Preheat your oven to 350°F (180°C) and lightly grease a small oven-safe dish (a 6-inch round or a 4×6-inch baking dish works well). Place the 1 cup rolled oats, 1 banana, 2 tbsp cocoa powder, 1/4 cup milk, 1 egg, 2 tbsp maple syrup, 1 tsp vanilla, 1/2 tsp baking powder, and pinch of salt into a blender. Blend on high for about 30 seconds, scraping down the sides if needed, until the mixture is completely smooth and looks like a thin chocolate milkshake.

The batter should be loose and pourable. If it seems too thick (this can happen if your banana was small), add another tablespoon of milk and blend again briefly. You want the consistency of pancake batter.

Step 2: Fold in the Chocolate Chips

Pour the batter into a medium bowl or leave it in the blender jar. Add the 2 tbsp chocolate chips and use a spatula to fold them in gently. This quick stir stops the chips from sinking straight to the bottom during baking, which means you get a more even chocolate distribution.

Don’t worry if the batter is a little bubbly from blending; that’s just the air working itself into the mixture and it’ll settle as it bakes.

Step 3: Pour and Top the Batter

Scrape the batter into your greased dish, smoothing the top with the spatula so it’s even. Scatter a few extra chocolate chips over the surface. Those top chips will melt and form glossy little pools in the oven, giving you a beautiful finish without any extra work.

At this point, if you’re adding a nut butter swirl, now’s the time to dollop a spoonful on top and run a knife through the batter in a figure-eight pattern.

Step 4: Bake Until Set

Slide the dish into the preheated oven and bake for 20 to 25 minutes. The top should look set and the edges will pull away slightly from the sides of the dish. A toothpick inserted in the centre should come out with moist crumbs attached, not wet batter. If it still looks liquid in the middle, give it another 3 to 5 minutes.

The oats will puff up a little and develop a subtle crackly top, similar to a brownie. That’s your sign that it’s nearly done.

Step 5: Scoop It Out and Serve Warm

Remove the dish from the oven and let it rest for just 2 minutes. The baked oats will settle as they cool slightly. Use a large spoon to scoop out generous portions into bowls. This is a beautiful soft, fudgy breakfast that’s best eaten right away while still warm.

Serve it plain or with a spoonful of Greek yogurt, a drizzle of extra maple syrup, or fresh berries on the side. The dish itself stays warm, so you can eat straight from it if you’re enjoying a slow morning.

Before You Bake (a Few Tips)

• Use a very ripe, spotty banana for the sweetest, smoothest batter. Greenish bananas can leave a starchy taste and won’t blend as thoroughly.
• Don’t skip the pinch of salt, it makes the chocolate flavour pop without tasting salty.
• For the fudgiest centre, err on the side of underbaking. The oats will continue to set from the residual heat after you pull them out.
• If you’re doubling the recipe, use an 8×8-inch square pan and increase the bake time to about 28 to 32 minutes. Keep an eye on it.
• Leftover chocolate chips on top will look glossy and melted, but a few minutes out of the oven they’ll firm up into a soft candy-like layer. It’s a nice little bonus.

Bake time varies a little depending on the dish you use. Here’s a quick guide:

Storing Leftover Baked Oats

Refrigerate any uneaten oats in a covered container for up to 4 days. The texture firms up when cold, so reheat individual portions in the microwave for 30 to 60 seconds to soften them again. You can also enjoy them cold, straight from the fridge; they end up dense and almost like a chocolate oatmeal bar.

What To Serve With Brownie Baked Oats

This dish is filling on its own, but a dollop of thick Greek yogurt or coconut yogurt adds a cool, tangy contrast that balances the rich chocolate. Fresh raspberries or sliced strawberries cut through the sweetness nicely, and a drizzle of almond butter brings an extra layer of nuttiness. If you want a more substantial breakfast, serve it alongside a soft scramble or a couple of turkey sausages.

Frequently Asked Questions

Can I make brownie baked oats without a blender?

Yes. Use 1 cup of oat flour in place of the rolled oats and whisk the ingredients together by hand until smooth. The texture will be slightly less airy but still delicious.

Can I use quick oats or steel-cut oats?

Quick oats work fine but yield a softer, less structured result. Steel-cut oats will not blend smoothly and won’t soften enough during the bake, so avoid them here.

Why did my baked oats turn out dry?

Dryness almost always comes from overbaking. Pull them out as soon as the centre is just set and a toothpick comes out with moist crumbs. A too-small banana can also reduce moisture; if your banana is under 4 inches long, use a heaping one or add an extra tablespoon of milk.

Can I omit the banana?

You can substitute the banana with 1/4 cup unsweetened applesauce, though the final dish will be less sweet and have a milder flavour. Add an extra half tablespoon of maple syrup if needed.

Can I prep the batter the night before?

Yes. Blend everything except the chocolate chips and refrigerate the batter in a covered container overnight. In the morning, stir in the chips, pour it into the dish, and bake directly from the fridge. Add 2 to 3 extra minutes to the bake time.

Brownie Baked Oats Recipe

Print Recipe Pin Recipe

Prep Time 5 minutes mins

Cook Time 22 minutes mins

Total Time 27 minutes mins

Servings: 2 servings

Calories: 380

Ingredients Method Notes

Ingredients

  

• 1 cup rolled oats
• 1 large ripe banana
• 2 tbsp unsweetened cocoa powder
• 1/4 cup milk of choice
• 1 large egg
• 2 tbsp maple syrup or honey
• 1 tsp vanilla extract
• 1/2 tsp baking powder
• Pinch of salt
• 2 tbsp chocolate chips, plus extra for topping

Method

 

1. Preheat oven to 350°F (180°C) and grease a small 6-inch round or 4×6-inch baking dish.
2. Blend the oats, banana, cocoa powder, milk, egg, maple syrup, vanilla, baking powder, and salt until smooth, about 30 seconds.
3. Fold in the 2 tbsp chocolate chips, then scrape the batter into the prepared dish.
4. Top with extra chocolate chips and bake for 20 to 25 minutes, until the top is set and a toothpick inserted in the centre comes out with moist crumbs.
5. Let rest 2 minutes, then scoop into bowls and serve warm.

Notes

This recipe works best with a very ripe, spotty banana for natural sweetness. If you only have a small banana (under 4 inches), add an extra tablespoon of milk to keep the batter pourable. The baked oats will be soft and fudgy right out of the oven; as they cool, they firm up slightly but remain tender.