2 c. semi-sweet chocolate chips
1 (14 oz.) can condensed milk
1/4 c. butter
1 c. chopped pecans

Microwave chips, milk and butter on 50-70 percent power until chips melt (about 3-5 minutes) stirring several times. Add nuts. Pour in well-greased 8 inch square pan. Refrigerate until set.

For Variety: Add 1 cup marshmallows while fudge is hot, stirring until marshmallows are partially melted.