1 cup brown sugar, packed * 1 cup butter
18-20 large marshmallows (or about 80 mini-marshmallows)
12 cups popcorn, popped
Microwave the brown sugar and butter for 2 minutes and stir. Add the marshmallows. Microwave until melted, 1 ½ to 2 minutes and mix until combined. Pour over popcorn and stir until evenly covered.