1 c. peanut butter
6 c. Rice or Corn Chex
1/4 c. butter
1 c. chocolate chips
2 c. powdered sugar

Mix peanut butter, butter and chocolate chips in large microwave bowl; heat on high approximately 2 minutes or until melted in microwave. Pour Chex into large bowl; pour hot mixture over Chex; mix until well coated. Put powdered sugar in paper bag; pour mixture into bag and shake until completely covered. Pour mixture back into large dog bowl and serve.