Puppy Chow

9 cups Chex cereal
6 oz semi sweet chocolate chips (1 cup)
1/2 cup peanut butter
1/4 cup stick butter
1 tsp vanilla
1 1/2 cup powdered sugar

microwave chocolate chips, peanut butter and butter in 1 qt bowl for 1 minute on high. Stir. Microve 30 seconds longer or until mixture can be stirred smooth

Stir in vanilla

Pour chocolate mixture over cereal in bowl, stirring until evenly coated. Pour into large plastic food storage bag; add powdered sugar. Seal bag; shake until well coated. Spread on waxed paper to cool. Store in airtight container in refrigerator.