5 quarts popped corn
2 c brown sugar-packed loosely
½ c Karo syrup
1 c margarine
1 t cream of tartar
1 t baking soda
Boil sugar, karo syrup, margarine, and cream of tartar for 5 mins.
Add soda.
Pour over corn, mix well.
Bake 1 hour at 250 degrees on a cookie sheet.
Stir every 15 mins.