Use either homemade or store-bought brownies and jazz them up to make a spooktacular decorated Halloween brownie with the Nightmare Before Christmas theme.
Cut 12 circles out of the 12-inch x 9-inch brownie bars and place them onto a cookie sheet. Set aside.
Using a standing mixer, with paddles attached, beat 4 large egg whites, 3 cups confectionerssugar, 1 teaspoon vanilla extract, and 1 teaspoon cream of tartar for 5-7 minutes until stiff peaks form. You may need to add ½ cup more confectioners' sugar if the icing is too thick.
Divide the icing into 4 small mixing bowls, mix 1 color each of teal, black, pink, and yellow gel coloring into each bowl until you get the desired colors you are looking for.
Using whichever color you prefer, place that gel into a piping bag and pipe a triangle or an odd shape onto the top of the brownie and fill it in.
Repeat the same step with the remaining colors, making sure they touch.
Using the black icing bag, pipe black lines over the parts where the colors meet to create Sallys “stitching” Pipe small " x" over the black lines to create the binding look of Sally's dress
Allow the icing to harden.
Squeeze the black frosting into the last piping bag. Pipe a spider anywhere on the top of the brownies.
Allow the frosting to harden for an hour before enjoying it.
Notes
Be sure to check Variations, Expert Tips, and FAQs above with important tips and questions that can help make a delicious recipe.Note 1: Homemade or store-bought brownies can be used.Note 2: Do not use boxed egg whites, they will not work for this frosting. Note 3: Begin with 3 cups confectioners' sugar. Add the remaining ½ cup if the frosting is too thick. Storage - You can store these spooky brownies in an airtight container at room temperature for up to 5 days.
Any nutritional data I provide is an approximation and actual dietary information can vary based on ingredients and proportion sizes.