Misty Mint Cookies

Misty Mint Cookies

2 cups flour
1/2 teaspoon baking soda
1/4 teaspoon cream of tartar
1/2 cup butter
1 egg
1 cup sugar
1/2 teaspoon vanilla
1/2 teaspoon peppermint extract
1/2 cup sour milk

Cream butter, add sugar and egg, beat well. Add rest of ingredients and mix well. Bake at 350* for 10 minutes.