Ingredients:
• 1 cup sifted confectioners' sugar
• ¼ teaspoon salt
• ½ teaspoon vanilla extract
• 1 tablespoon water
• 2 drops orange food coloring
• 2 drops green food coloring
Method:
- Blend confectioners' sugar, salt and vanilla. Add just enough water to make frosting easy to spread.
- Divide frosting into 2 small bowls. Add 2 drops of orange food coloring to one bowl and 2 drops of green food coloring to the other bowl. Mix each until the colors are even.
- Frost 1 inch of the left side of each Irish Flag Cookie with the green frosting and 1 inch of the right side of the cookies with the orange frosting, leaving the middle inch unfrosted.
http://allrecipes.com/recipe/irish-flag-frosting/detail.aspx