Chocolate-Mint Crème Cookies

I used clear creme de menthe; you may use green if you'd rather, and you can tint the frosting green with food coloring as well. I prefer mine white.
Cookies:

1 ½ cups packed brown sugar
¾ cup butter, cubed
2 Tbsp water
2 cups (12 oz) semisweet chocolate chips
2 eggs
3 cups flour
1 ¼ tsp baking soda
1 tsp salt


Filling:

1/3 cup butter, softened
3 cups confectioners + about ¼ cup extra if necessary
3 Tbsp milk
¼ cup crème de menthe


In a small saucepan, combine the brown sugar, butter, and water. Cook and stir over medium heat until sugar is dissolved. Remove from heat; stir in the chocolate chips until melted and smooth. Transfer to a large mixing bowl; cool slightly.

Add eggs, one at a time, beating well after each addition. Combine flour, baking soda, and salt; gradually add to chocolate mixture. Drop by rounded teaspoonfuls onto greased baking sheets. Bake at 350 degrees for 8-10 minutes or until set. Remove to wire racks; flatten slightly. Cool completely.

Combine filling ingredients; spread on the bottom of half of the cookies. Top with remaining cookies. Store in refrigerator. Makes 4 dozen.