Pour caramel over crunchy popcorn to produce one of the most delicious treats. This one is not only for kids.
In 2 1/2 quart saucepan combine brown sugar, corn syrup, butter, cream of tartar, and salt.
Bring to a boil, stirring, over med high heat. Stirring constantly, boil rapidly to hard ball stage, 260° F, for about 5 minutes.
Remove from heat. Stir in baking soda quickly but thoroughly, pour at once over popcorn in a lg roasting or baking pan. Stir gently until all kernels are coated.
Bake 200° F for 1 hr, stirring 2-3 times during baking.
Turn out at once on wax paper, spread apart and allow to cool completely.
Break apart, store in a tightly covered container.