Melt the chocolate in a small, deep saucepan over low heat, stirring frequently, or in a small bowl in the microwave, until completely melted and smooth. A small, deep vessel makes dipping the balls easier. Remove the chocolate from the heat and drop the balls in one at a time and roll them around with a fork to coat. Remove them with the fork, allowing excess chocolate to drip back into the pot. Place each coated ball back on the baking sheet, making sure they do not touch, and repeat until all the balls are coated. If the chocolate begins to harden or seize, just return it to low heat and stir until it smooths out and continue coating the candy. Leave the balls to harden for several hours, then transfer them to a covered container.