In a small saucepan place the condensed milk, cocoa and butter. Stir well to incorporate all the cocoa mixture.
Place over low heat and cook about 5-6 minutes stirring constantly. At first the mixture is soft but after about 2 minutes start to thicken. You know it’s ready when the mixture becomes sticky.
Allow mixture to cool about 15 minutes (so they can be shaped by hand without sticking).
With a little oil (or melted butter) on your hands, make balls with the size of a Raffaello candy. Candies are very shiny.
On a plate, sprinkle 3 tablespoons of chocolate chips. Dredge the balls in this mixture.
Place them on a plate or in candy papers and refrigerate or serve immediately. Yield: 8