1/2 c. firmly packed brown sugar
1/4 c. butter
1 1/2 c. peanuts
1/2 c. Karo (light or dark)
6 c. Chex cereal

In 4 quart sauce pan, put sugar, Karo and butter. Cook on medium heat until butter melts, stirring constantly. Add cereal and nuts, stirring until coated. Put into large greased pan and bake at 250 degrees for 30 minutes, stirring frequently. Take out of pan and spread on counter. Break up while still warm.