All brownies are magical. Brownies can literally make anyone smile. Even your principal--and she never smiles (especially not when you stuff a small piece of paper into the water fountain spigot and a laser beam of water shoots out and hits people in the face when they bend down for a drink. Not that I would know anything about that--wink, wink). But if all brownies are magical, the most magical brownies are rainbow unicorn brownies, with glitter. If you eat one after losing a tooth your tooth will grow back in 24 hours. They fix broken bones. They finish your homework for you. They are as magical as they are delicious.
Preheat the oven to 350 degrees F. Spray a 9-inch square cake pan with nonstick cooking spray, line it with parchment, then spray it again and set aside.
In a large microwave-safe bowl, melt the butter and white chocolate over a double boiler, or in the microwave in 15-second increments (stirring with a rubber spatula between every increment).
Stir in the sugar, salt and vanilla until well combined. Beat the eggs in a small bowl and add about 1/2 cup of the sugar mixture to temper. Add the egg mixture into the sugar mixture and stir well. Gradually add the flour to the batter, stirring until completely combined.
Separate the batter into 3, 4 or 5 bowls, depending on how many colors you want to make. Stir a few drops of color into each bowl until you have the colors you want.
Using a rubber spatula, transfer each batter color to its own piping bag. Cut the tip off of each bag and then pipe the colors into the baking pan. You can pipe in straight lines, squiggles, whatever you want, just remember that you are going to cut the brownies up so make sure that every brownie gets all the colors!
Bake for 40 to 45 minutes (or until a toothpick inserted in the center comes out clean).
Meanwhile, in a large microwave-safe bowl, melt the chocolate chips over a double boiler, or in the microwave in 15-second increments (stirring with a rubber spatula between every increment).
Allow the brownies to cool in the pan, then cut them into squares and drizzle top with the melted white chocolate and edible glitter.
Allow the bars to set at least 10 minutes until the chocolate hardens and the magic works.
Never leave a child unattended in the kitchen. This recipe is appropriate for children of various ages. When a recipe calls for cooking on the stove or using a knife, an adult should do those activities and let the child assist, if age appropriate.
Never leave a child unattended in the kitchen. Limit the child to tasks that are safe and age-appropriate.