1/2 c. butter
5 oz. can evaporated milk
2 c. sugar
6 oz. chocolate or peanut butter chips
10 lg. marshmallows, quartered
1/2 - 1 c. nuts

Melt butter in pyrex bowl. Add milk and sugar. Stir. Microwave on full power 3 1/2 to 4 1/2 minutes. Stir. Microwave on full power for 5 minutes. Quickly stir in chips and marshmallows and nuts and put in 8 or 9 inch pan. Cool completely.