Puppy Chow - 1/2 c peanut butter; 1/4 c butter; 1 c chocolate chips; 1/2 tsp vanilla; 9 c Rice Chex; 3 c powd sugar - Combine peanut butter, butter and chocolate chips & microwave on high 1 minute. Stir until smooth. Add vanilla. Add 9 cups cereal to large bowl with plenty of room to mix. Pour over cereal & toss/stir to coat evenly. Pour powdered sugar over cereal. Stir/Toss to coat evenly.