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Birthday Cake Brownies

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Two layers of pure joy: a chewy, sprinkle-filled cookie base topped with rich, fudgy brownies, making every bite a celebration.

Ingredients

Scale
  • 1/2 cup unsalted butter melted
  • 1/2 cup + 1 tablespoon light brown sugar packed
  • 1/4 cup granulated sugar
  • 1 large egg
  • 1 large egg yolk
  • 1 teaspoon vanilla extract
  • 1 cup + 2 tablespoons all-purpose flour
  • 1/4 cup + 2 tablespoons rainbow sprinkles
  • 1/2 teaspoon fine sea salt
  • 1/4 teaspoon baking powder
  • 4 tablespoons unsalted butter melted
  • 1/3 cup semi-sweet chocolate chips
  • 1/4 cup + 1/8 cup granulated sugar
  • 1 large egg
  • 1 teaspoon vanilla extract
  • 1/4 cup all-purpose flour
  • 1/4 cup unsweetened dark cocoa powder
  • 1/4 teaspoon fine sea salt

Instructions

  1. Preheat the oven to 350°F (180°C).
  2. Line a square 8×8 inch baking pan with parchment paper, leaving an overhang on all four sides.
  3. In a large bowl, whisk together the light brown sugar, granulated sugar, 1 large egg, 1 large egg yolk, and 1 teaspoon vanilla extract until fluffy, for about 1 minute.
  4. Stream the 1/2 cup melted butter into the bowl while whisking constantly until completely combined.
  5. Fold the 1 cup + 2 tablespoons all-purpose flour, 1/4 teaspoon baking powder, 1/2 teaspoon fine sea salt, and 1/4 cup + 2 tablespoons rainbow sprinkles into the batter until just combined.
  6. Spread all but about 2/3 cup of the cookie batter evenly into the prepared baking pan with an offset spatula.
  7. Melt the 4 tablespoons unsalted butter and 1/3 cup semi-sweet chocolate chips together in a separate bowl until smooth.
  8. In another medium bowl, whisk together the 1/4 cup + 1/8 cup granulated sugar, 1 teaspoon vanilla extract, and 1 large egg until fluffy, for about 1 minute.
  9. Stream the melted butter and chocolate mixture into the bowl, whisking constantly until completely combined.
  10. Fold the 1/4 cup all-purpose flour, 1/4 cup unsweetened dark cocoa powder, and 1/4 teaspoon fine sea salt into the brownie batter until combined.
  11. Pour the brownie batter on top of the cookie batter in the pan and spread it evenly with an offset spatula.
  12. Use a spoon to dollop the reserved 2/3 cup cookie batter on top of the brownie layer.
  13. Sprinkle with more rainbow sprinkles.
  14. Bake the brownies for 25-30 minutes, or until a toothpick inserted into the center comes out with just the tip smeared in chocolate.
  15. Let them cool completely on a wire rack before cutting.
  16. Cut into squares and enjoy!

Notes

Ensure your butter is melted but not hot when adding to the sugar mixture.
Measure flour by spooning it into the measuring cup and leveling it off for accuracy.
Do not overmix the batters; mix only until ingredients are just combined.
Allow brownies to cool completely before cutting for clean slices and best texture.

Find it online: https://homecookstudio.com/birthday-cake-brownies/