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Party Brownies Recipe

4.9 from 75 reviews

These Party Brownies are a delightful twist on classic brownies, featuring a rich chocolate frosting topped with colorful rainbow sprinkles. Made from a simple brownie mix and enhanced with a luscious, homemade chocolate frosting, they are perfect for celebrations and gatherings, offering a fun and festive treat that everyone will love.

Ingredients

Scale

Brownie Base

  • 1 box brownie mix (usually 1618 ounces)
  • 6 tablespoons butter
  • 1/3 cup milk

Chocolate Frosting

  • 1 1/4 cups granulated sugar
  • 1 teaspoon vanilla extract
  • 1/2 teaspoon coarse kosher salt
  • 1 cup semi-sweet chocolate chips

Topping

  • Rainbow sprinkles

Instructions

  1. Make the brownies: Prepare the brownie mix according to the package instructions, combining necessary ingredients as directed.
  2. Bake the brownies: Pour the batter into a 9×13 inch or slightly smaller rectangular pan and bake following the package directions. Once baked, allow the brownies to cool for about an hour before adding the frosting.
  3. Make the frosting: In a small saucepan over medium heat, melt the butter. Add the milk, granulated sugar, vanilla extract, and coarse kosher salt. Bring the mixture to a consistent rolling boil and maintain the boil for 45 seconds; use a timer to prevent overcooking.
  4. Mix in the chocolate: Remove the saucepan from heat, add the semi-sweet chocolate chips, and stir until completely combined and smooth. Whisk for a minute if there are any chocolate lumps.
  5. Frost the brownies: Quickly pour the warm chocolate frosting evenly over the cooled brownies. Spread promptly as the frosting begins to set immediately. Sprinkle rainbow sprinkles over the frosting.
  6. Rest and serve: Let the frosted brownies rest for 15 to 30 minutes to allow the frosting to set properly, which will help achieve clean slicing. Cut into pieces and serve for a fun party treat!

Notes

  • Use a 9×13 inch pan or slightly smaller rectangular pan to ensure proper baking.
  • Pour and spread the frosting quickly as it sets fast once off heat.
  • Allow frosting to rest for at least 15 minutes for cleaner slices.

Keywords: party brownies, chocolate brownies, festive brownies, easy brownies, homemade frosting, chocolate frosting brownies