- 1 1/2 cups confectioners’ sugar
- 1 egg white (I used 2 teaspoons of meringue powder and 2 tablespoons of water)
- 3 drops yellow food coloring
- 3 drops blue food coloring
Cut white paper into twelve 2 by 11 strips. Using an electric mixer, beat the confectioners sugar and egg white until smooth, about 5 minutes. Divide the icing into 2 bowls. Stir the yellow food coloring into one batch and the blue food coloring into the other. Cover the blue icing with plastic wrap.
Arrange the paper strips side by side on a work surface. Scrape the yellow icing into a small, resealable plastic bag and snip off a tiny corner. Pipe out the icing onto the paper in dots, about 1/3 inch apart. When a quarter of the yellow icing remains, add the same amount of blue icing, stirring with a toothpick. Pipe green dots onto the paper strips. Transfer the rest of the blue icing to another plastic bag and continue piping dots. Let the dots sit at room temperature until hardened, 12 hours or overnight.