Chex Muddy Buddies

9 cups Corn Chex, Rice Chex, Wheat Chex or Chocolate Chex cereal (or combination)
1 cup semisweet chocolate chips 1/2 cup peanut butter
1/4 cup butter or margarine
1 tsp. vanilla
1 1/2 cups powdered sugar

Directions:
1.) Into large bowl, measure cereal; set aside.
2.) In 1-quart microwavable bowl, microwave chocolate chips, peanut butter and butter uncovered on High 1 minute; stir. Microwave about 30 second longer or until mixture can be stirred smooth. Stir in vanilla. Pour mixture over cereal, stirring until evenly coated. Pour into 2-gallon resealable food-storage plastic bag.
3.) Add powdered sugar. Seal bag; shake until well coated. Spread on waxed paper to cpp;. Sore in airtight container in refrigerator.

This sounds like Jamie's Puppy Chow. Twas Yummy.