16 c. popped popcorn
1 stick butter
1 c. brown sugar
1/2 tsp. salt
1/4 c. light Karo
1/2 tsp. baking soda
3/4 c. peanuts, optional

Place butter, sugar, salt, karo in microwaveable bowl. Microwave (high) for 1 1/2 minutes. Stir microwave 3 minutes more. Remove from microwave stir in baking soda until foamy. Place popcorn and peanuts in brown grocery bag. Pour syrup over popcorn in bag. Fold top over 3 times. Microwave 1 minute. Shake closed bag well. Microwave 1 minute more. Shake again. Microwave 30 seconds more. Carefully cool on cookie sheets.