Puppy Chow

1 1/2 (12.3 ounce) boxes Crispix
1/2 cup butter
1 1/2 cups peanut butter
3 cups confectioners sugar

Melt butter and peanut butter together; pour over Crispix. Mix gently. Put confectioners sugar into a large brown paper bag. Add Crispix mixture and shake very gently. Keeps well and can be frozen.