Chocolate Dipped Krispies Peanut Butter Balls

Ingredients

• 1/2 cup butter or 1/2 cup margarine
• 2 cups chunky peanut butter
• 1 teaspoon vanilla (optional)
• 1 lb powdered sugar
• 3 cups rice, krispies
• 2 ounces paraffin wax or 2 ounces shortening
• 1 (24 ounce) package chocolate chips (using 12 ounces for large balls or 24 ounces for small one)