Muddy Buddies (aka Puppy Chow)

We love when my sister Abby comes home and makes this tasty treat for us to snack on!

• 9 cups Chex cereal
• 6 oz. semisweet chocolate chips (1 cup)
• ½ cup peanut butter
• ¼ cup butter or margarine
• 1 tsp. vanilla
• 1 ½ cups powdered sugar

Put chocolate chips, peanut butter, and butter in bowl and microwave for 1 minute. Stir and then microwave for 30 seconds more. Add vanilla and mix.
Pour over cereal in a large bowl and mix thoroughly. Put in 1-quart ziplock bag.
Add sugar; seal and shake. Cool by spreading on wax paper. Store in refrigerator in airtight bag or container.