3 c. chocolate chips
1 can condensed milk
1/4 c. butter
1 c. nuts

Place all ingredients except nuts in bowl. Microwave on 1/2 power until chocolate chips are melted, 3 to 5 minutes. Stir once or twice during cooking. Stir in nuts. Pour into greased 8 x 8 inch pan. May substitute 1 cup peanut butter for 1 cup chocolate chips.