Chocolate Peppermint Sandwiches

INGREDIENTS:
3/4 cup butter
1 cup sugar
1/2 teaspoon vanilla
1 egg
2 cups flour
1/2 teaspoon baking soda
1/2 teaspoon salt
3/4 cup cocoa
1/4 cup milk

DIRECTIONS:
Beat butter, sugar, vanilla, egg. Mix dry ingredients. Add to wet ingredients alternating with the milk. Shape dough into logs on waxed paper or parchment. Roll up and freeze. Slice into cookies, not too thin and bake at 350 for 5-10 minutes. Don't over bake. Don't brown. Cook only until no longer doughy.

Make frosting, add peppermint flavoring, and add food coloring. Sandwich cookies with the frosting.