3 cups brown sugar
3/4 cup light Karo syrup
3 sticks of butter (yes, 3!)
8 quarts popped popcorn (not microwave popcorn)
3/4 tsp soda
"pinch" cream of tartar
1 tsp vanilla
*Mix sugar, butter, and syrup in heavy pan; bring to a boil. Boil for 5 minutes. Remove from heat and add soda, cream of tartar, salt, and vanilla.
*Put popped corn in a large roasting pan. Carefully pour over caramel mixture. Stir.
*Bake at 200 for 60 minutes, stirring every 15 minutes. Spread on wax paper to cool.