Puppy Chow (aka Muddy Buddies)

1 - 12.8 oz box Rice Chex
2 c chocolate chips
3/4 c peanut butter
1/2 c butter
1 t vanilla
3 c powdered sugar

In a very large mixing bowl, dump the box of Chex and set aside. In a microwavable bowl, microwave chocolate chips, peanut butter and butter uncovered for 1 minute. Stir until blended, then microwave on high for 1 more minute. Chocolate will still have SOME lumps in it, but continue stirring until the lumps are completely gone. Stir in vanilla. Pour over the cereal and continue mixing until every Chex has been coated. In two separate 1 gallon Ziploc bags, put 1 1/2 c powdered sugar in each bag. Dump then, half of the chocolate covered cereal in one bag, and the other half into the second bag. Shake so that each piece is coated. You can add more powdered sugar if you like them coated a little more. All in your preference. Put in the fridge or freezer for about 30 minutes before serving. Keep in the fridge if it isn't completely consumed in one sitting! :)