2 sticks (1 c.) butter
2 c. firmly packed brown sugar
1/2 c. light or dark corn syrup
1 tsp. salt
1/2 tsp. baking soda
1 tsp. vanilla
6 qt. popped popcorn

Melt butter. Stir in brown sugar, corn syrup and salt. Bring to boil, stirring constantly. Boil without stirring for 5 minutes. Remove from heat. Stir in soda and vanilla. Gradually pour over popped corn mixing well. Turn mixture into 2 large, shallow baking pans.

Bake in preheated oven at 250 degrees for 1 hour, stirring every 15 minutes. Remove from oven. Cool completely. Break apart and store in tightly covered container. Makes about 5 quarts.