Brownie Baked Oatmeal delivers rich sweetness and craveable texture—slice, share, and try not to snag one early.
Brownie-Style Baked Oatmeal for Mornings (and Lunchboxes)
All the fudgy chocolate comfort of a brownie baked into a hearty oat square you can slice, stash, and reheat all week long.
Think of this as the breakfast that winks at dessert: cocoa-forward baked oatmeal with melty pockets of semisweet chocolate and a crackle of walnut on top. It answers the weekday scramble by turning pantry staples—rolled oats, cocoa, brown sugar, and a touch of espresso—into something richly chocolatey but still wholesome enough for morning.
The texture is the best part: let the oats sit briefly in the wet mix so they soften, then bake until the edges set and the middle stays slightly fudgy. Melted butter and eggs give it lift and silk, while chocolate chips create gooey surprises in every bite and walnuts add a toasted crunch that keeps the squares from feeling one-note.
This is a make-ahead delight: bake in an 8×8 pan, cool, slice into four or more portions, then wrap and refrigerate for grab-and-go breakfasts or lunchbox treats. Reheat for 20–30 seconds in the microwave to revive that just-baked warmth, or enjoy cold like a chewy chocolate bar.
Small swaps are easy—use 2% milk as written or swap for your favorite plant milk, and adjust baking time by a few minutes for a firmer slice. A sprinkle of flaky salt before baking or a quick dusting of powdered sugar after cooling elevates the finish without fuss.
Ingredients
How to Make Brownie Baked Oatmeal
- Preheat the oven to 350°F (175°C) and lightly grease an 8x8-inch (20x20 cm) baking dish or line it with parchment paper for easy removal.
- In a large bowl, whisk together the rolled oats, cocoa powder, brown sugar, baking powder, salt, and instant espresso powder until evenly combined.
- In a separate bowl, whisk the eggs, milk, vanilla extract, and melted butter until smooth and slightly frothy.
- Pour the wet ingredients into the dry ingredients and stir with a spatula until the mixture is fully combined; let sit 3–5 minutes so the oats absorb some liquid.
- Fold in 3/4 of the chocolate chips and half the walnuts, reserving the rest to sprinkle on top for appearance and texture.
- Transfer the mixture to the prepared baking dish and spread it into an even layer, then scatter the remaining chocolate chips and walnuts over the surface.
- Bake for 25–30 minutes, or until the edges are set and a toothpick inserted near the center comes out with moist crumbs but not wet batter.
- Remove from the oven and let cool in the pan for 10–15 minutes to firm up, then slice into 4 generous squares for serving.
- Store leftovers covered in the refrigerator for up to 4 days and reheat individual portions in the microwave for 30–60 seconds or warm in a 325°F oven until heated through.
Recipe Card
Brownie Baked Oatmeal
Brownie Baked Oatmeal delivers rich sweetness and craveable texture—slice, share, and try not to snag one early.
- Prep
- 15 min
- Cook
- 30 min
- Servings
- 4
Ingredients
Instructions
- Preheat the oven to 350°F (175°C) and lightly grease an 8x8-inch (20x20 cm) baking dish or line it with parchment paper for easy removal.
- In a large bowl, whisk together the rolled oats, cocoa powder, brown sugar, baking powder, salt, and instant espresso powder until evenly combined.
- In a separate bowl, whisk the eggs, milk, vanilla extract, and melted butter until smooth and slightly frothy.
- Pour the wet ingredients into the dry ingredients and stir with a spatula until the mixture is fully combined; let sit 3–5 minutes so the oats absorb some liquid.
- Fold in 3/4 of the chocolate chips and half the walnuts, reserving the rest to sprinkle on top for appearance and texture.
- Transfer the mixture to the prepared baking dish and spread it into an even layer, then scatter the remaining chocolate chips and walnuts over the surface.
- Bake for 25–30 minutes, or until the edges are set and a toothpick inserted near the center comes out with moist crumbs but not wet batter.
- Remove from the oven and let cool in the pan for 10–15 minutes to firm up, then slice into 4 generous squares for serving.
- Store leftovers covered in the refrigerator for up to 4 days and reheat individual portions in the microwave for 30–60 seconds or warm in a 325°F oven until heated through.
Nutrition
- Carbohydrates
- 66
- Saturated Fat
- 9
- Sodium
- 450
- Fiber
- 9
- Unsaturated Fat
- 20
- Protein
- 15
- Fat
- 30
- Cholesterol
- 125
- Trans Fat
- 0.3
- Calories
- 590
- Sugar
- 30