Carmel Popcorn

1 lb. bag popped popcorn
2 ¼ cups brown sugar
1 can sweet & condensed milk
1 cube butter
1 cup white Karo syrup

Combine all ingredients except popcorn in a heavy kettle. Cook to soft ball stage (approx 240° with a candy thermometer).

Remove from heat and pour over popcorn in a large bow (half at a time).