Use a small jars of peanut butter, a stick of melted butter and couple of bags of confectioner's sugar. Put peanut butter in a large mixing bowl, add stick of melted butter until combined. Use enough confectioner's sugar to make a mixture that will hold together when rolled into a ball. Don't use too little because it will be greasy and won't hold the chocolate coating. Roll peanut butter mixture into balls about the size of a quarter. In the meantime melt Hershey bars in a double boiler. Make sure the chocolate doesn't get too hot or it will seize up. Dip peanut butter balls into the chocolate and cover them with the chocolate. I use a fork because it will allow the excess chocolate to fall back in the pot. Place the chocolate covered peanut butter balls on wax paper or parchment paper. Chill in the refrigerator until solid. Pack in a covered container and they will last indefinitely. These make a good Christmas present for those who don't make candy.