Ingredients:

1 cup butter (softened)

1 cup sugar

1 cup brown sugar

1 large egg

1 teaspoon vanilla

2 ½ cups flour

2 teaspoons cream of tartar

2 teaspoons baking soda

Pinch of salt

Green sugar

Red sugar

Combine the softened butter, sugar and brown sugar. Add the egg and vanilla. Add the flour, cream of tartar, baking soda and salt. Make sure the dough is thoroughly mixed.

Chill the dough for at least one hour, it will be easier to handle.

Preheat the oven to 350 degrees.

Using a teaspoon, roll the dough into small balls. Dip one side in either the red or green sugar. Place on a cookie sheet lined with parchment paper, leaving enough space in between each cookie as they will spread when they bake.

Bake for 8 minutes, a minute longer if you want the cookie to be crunchy.