4 to 6 c. popcorn
1/2 c. butter
1/2 c. brown sugar
7 lg. marshmallows

In a medium bowl combine butter, sugar, and marshmallows. Cook 2-1/2 minutes at full power in microwave; stir until it is a syrup. Cook 30 seconds more. Pour over popcorn; stir. Then spread out on waxed paper; cool.