1 (12 oz.) pkg. chocolate chips (may use mint chocolate chips)
1 cube butter
1 lb. box powdered sugar
2 eggs
1 tsp. vanilla
Walnuts (opt.), 1 c. chopped

Melt chocolate chips and butter in microwave for 3 minutes. Add powdered sugar and eggs. Mix together and add 1 teaspoon of vanilla. Add nuts (optional). Put in greased 8"x8" pan. Spread out in pan. Hardens quickly. Cut into squares for serving.