Monkey munch

9 cups Chex cereal (any variety)
1 cup semi-sweet chocolate chips
1/2 cup peanut butter
1/4 cup butter or margarine
1 teaspoon vanilla
1 1/2 cups powdered sugar

Directions
1 Put chex in a large bowl and put aside.
2 Place chocolate chips, peanut butter and butter into a quart-sized microwavable bowl.
3 Stir the ingredients together.
4 Microwave the mixture uncovered for a minute on "high." Stir the mix again and continue to zap in thirty second intervals until it mixes smoothly.
5 Add the vanilla and stir.
6 Pour over the cereal while stirring.
7 Put combination into a 2-gallon, Ziploc freezer bag.
8 Add powdered sugar, seal the bag and shake until distributed.
9 Spread Monkey Munch out on wax paper to cool and dry.
10 Keep refrigerated in an airtight container for storage.