Preheat oven to 350
Line a square 8x8 baking pan with parchment and lightly butter.
With an electric mixer, cream together butter and sugar until light and fluffy.
½ cup butter, 1 cup sugar
Add in the egg and vanilla.
1 egg, 2 teaspoons vanilla extract
In a separate bowl combine flour, baking powder and salt.
2 cups all-purpose flour, 1 teaspoon baking powder, ½ teaspoon salt
Gradually add the dry ingredients into the wet ingredients until they are all well incorporated.
Divide the dough in half.
Add yellow food coloring to one half of the dough and knead until the color is even throughout.
yellow gel food coloring
Repeat with the other half of the dough and orange food coloring.
orange gel food coloring
Press the yellow dough into the bottom of your prepared pan.
Place the orange dough on a piece of parchment or wax paper and roll or press it out into an 8x8 square. Carefully place it on top of the yellow dough in the pan and gently press it into place.
Bake for 18-22 minutes or until just set. Don’t overbake or the cookies will be dry.
Place on a cooling rack to cool completely before frosting.