Puppy Chow

1 stick butter
1/2 c. peanut butter
1 c. chocolate chips
6 c. Rice or Corn Chex
powdered sugar

Melt butter, peanut butter and chocolate chips together. Stir in Rice or Corn Chex to coat. Put powdered sugar in paper bag or Tupperware container. Mix Chex mixture with powdered sugar. Shake until Chex are covered with powdered sugar.