1 (12 oz.) pkg. semi-sweet chocolate chips
1 (14 oz.) can sweetened condensed milk
6 oz. white chocolate
2 tsp. vanilla
1 tbsp. peppermint extract

Add one cup milk to chocolate chips. Melt. Add vanilla. Pour 1/2 of the mixture into an 8 x 8 inch wax paper-lined pan. Let cool for 10 minutes. Melt white chocolate with the remaining milk. Add peppermint and green food coloring. (Mixture will be very thick.) Spread on first layer. Let cool another 10 minutes. Top with other half of chocolate mixture. Let cool. Remove from pan, remove paper. Cut into squares.