5. While the peanut butter balls are in the freezer, melt the chocolate. I used melting wafers, but Wilton Candy melts or chocolate chips work. If using chocolate chips, add 2 tablespoons vegetable shortening (this helps with keeping it smooth and shiny). Melt the chocolate in a double boiler, or in your microwave. I melt in my microwave in 15-second increments, and stirring in between until smooth.