This is a combination of a few recipes; the main part comes from a Nestle cookbook (copied from a friend's house and I forgot to write down the title).
1 1/4 cup all purpose flour
1/2 tsp. baking soda
1/4 tsp. salt
3/4 cup sugar
1/2 cup butter
2 tbsp. water
1 1/2 cups chocolate chips, divided
1/2 - 1 tsp. peppermint extract
1/2 tsp. vanilla
Andes mints, unwrapped
Preheat oven to 350*; grease 9x9 inch pan. Microwave sugar, butter and water in a large, microwave-safe bowl until boiling. Stir in 1 cup chips and extracts - stir until melted. Add eggs, 1 at a time until well blended. Add dry ingredients and remaining chips. Bake 20-30 minutes. Remove from oven; cover with Andes mints. Wait 5 minutes, and swirl candies with knife. Let cool completely, and cut into bars.