Chocolate Mint Sandwich Cookies

Directions

1. Preheat oven to 350°. In a small saucepan, combine butter, brown sugar, water and chocolate chips. Cook and stir over low heat until chips are melted. Cool. Beat in eggs and vanilla. Combine flour, baking soda and salt; gradually add to chocolate mixture.
2. Drop by rounded teaspoonfuls 2 in. apart onto ungreased baking sheets. Bake until firm, 10-12 minutes. Remove to wire racks to cool.
3. In a large bowl, combine confectioners' sugar, butter, milk, extract, salt and, if desired, food coloring until smooth. Spread on the bottoms of half of the cookies; top with remaining cookies.