Description
Delicious Birthday Sprinkle Brookies combine fudgy brownies and chewy cookies with colorful sprinkles for the perfect celebration dessert.
Ingredients
Scale
- 1 box Ghirardelli dark chocolate brownie mix (plus ingredients called for on package)
- ½ cup unsalted butter, melted and cooled
- ¾ cup packed brown sugar
- 1 large egg, room temperature
- 1 egg yolk, room temperature
- 2 teaspoons cake batter extract
- 1 teaspoon pure vanilla extract
- 1 teaspoon cornstarch
- ¾ teaspoon baking powder
- 1 teaspoon salt
- 1½ cups all-purpose flour
- ½ cup mini semi-sweet chocolate chips
- ⅓ cup rainbow sprinkles
Instructions
- Preheat oven to 325°F. Line 9×9-inch pan with parchment paper and spray with cooking spray.
- Melt butter in microwave-safe bowl in 30-second intervals until completely melted. Cool completely.
- Prepare boxed brownie mix according to package directions. Mix until combined and set aside.
- Combine cooled melted butter with brown sugar in medium bowl. Mix until smooth and creamy, about 30 seconds.
- Whisk in egg and egg yolk one at a time until smooth. Add cake batter extract and vanilla extract.
- Fold in cornstarch, baking powder, salt, and flour with rubber spatula. Add chocolate chips and sprinkles. Mix until no flour streaks remain.
- Using cookie scoop or spoons, alternate dropping brownie batter and cookie dough dollops into prepared pan.
- Bake 50-55 minutes until toothpick inserted in center comes out with moist crumbs. Edges should be set.
- Cool completely in pan on wire rack for 30 minutes before cutting.
Notes
- Room temperature eggs incorporate better and create smoother batter consistency
- Cake batter extract is essential for authentic birthday cake flavor – don’t substitute
- Rainbow sprinkles may bleed slightly during baking, which is normal and adds character
- Brookies continue cooking slightly from residual heat, so don’t overbake
- Store in airtight container at room temperature for up to 5 days
- Prep Time: 15 minutes
- Cook Time: 50-55 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 square
Keywords: celebration brookies, rainbow sprinkle desserts, brownie cookie bars, birthday party treats, colorful baked goods, festive desserts, easy brookies recipe, chocolate chip brookies