This is one I use at Christmas.
In a small bowl mix together 1 cup milk and 1 small box instant chocolate pudding. Set aside. Cream together 1/3 c chunky peanut butter and 4 oz cream cheese in a medium bowl. Add the pudding mixture and blend until mixed. Roll into balls. Roll the balls in powdered sugar, about 1/2 cup. Also works to place the powdered sugar in a bag and add a few balls at a time, shaking to coat the balls. Option to roll the coated balls in crushed nuts. Place the balls on a wax paper lined cookie sheet or in a lined plastic storage container and refrigerate.