Description
These s’mores-inspired marshmallow crunch brookies are the ultimate dessert mash-up, combining the richness of brownies, the chewiness of cookies, and the classic campfire flavors of graham crackers, chocolate, and toasted marshmallows. Topped with a layer of crunchy cereal and melty marshmallow, they’re gooey in the middle, crisp on top, and guaranteed to be a crowd-pleaser. Perfect for summer gatherings, bake sales, or cozy nights in.
Ingredients
Scale
- 1 cup all-purpose flour
- ½ cup unsweetened cocoa powder
- ½ cup granulated sugar
- ½ cup brown sugar, packed
- ½ cup unsalted butter, softened
- 2 large eggs
- 2 tsp vanilla extract
- 1 cup semi-sweet chocolate chips
- 1 cup mini marshmallows
Instructions
- Preheat your oven to 350°F (175°C) and prepare a baking dish by lining it with parchment paper.
- In a medium bowl, whisk together flour, cocoa powder, granulated sugar, brown sugar, and a pinch of salt.
- In another bowl, cream softened butter with both sugars until light and fluffy. Add eggs one at a time along with vanilla extract; mix until smooth.
- Gradually fold dry ingredients into the wet mixture without overmixing.
- Gently fold in chocolate chips.
- Spread half of the batter in the prepared dish, sprinkle mini marshmallows on top, then dollop remaining batter over it.
- Bake for 25-30 minutes or until a toothpick comes out clean from the center.
Notes
- Baking tip: For best results, chill your cookie dough before layering to help it hold its shape during baking.
- Avoid burning marshmallows: Tent the pan with foil during the last 5–10 minutes if marshmallows begin to brown too quickly.
- Crunch topping: Add the cereal-marshmallow topping after baking if you want it to stay crisp.
- Storage: Store in an airtight container at room temperature for up to 3 days, or freeze for up to 2 months.
- Make-ahead: Both brownie and cookie layers can be prepped and refrigerated up to 48 hours before assembling.
- Pan size: A 9×13-inch pan works best, but you can use an 8×8-inch pan for thicker brookies—just increase bake time by 5–10 minutes.
- Variation ideas: Try swapping in dark chocolate chunks, peanut butter cups, or caramel drizzle for a fun twist.
- Serving suggestion: Warm slightly and serve with vanilla ice cream for an extra indulgent treat.