Puppy Chow

*9 cups Chex
*1 bag chocolate chips
*1/2 cup peanut butter
*1/4 cup butter
*1 tsp vanilla
*1 1/2 cup powdered sugar

In large bowl, measure cereal and set aside. Melt chocolate, peanut butter and butter in an uncovered pot and stir until smooth. Stir in vanilla. Pour mixture over cereal, stirring to evenly coat. Pour into brown paper grocery sack with powdered sugar, fold the top over and shake until the cereal is coated with sugar. Spread on wax paper to cool.