Combine Ingredients: In a saucepan, combine the sweetened condensed milk, cocoa powder, and unsalted butter.

Cook Mixture: Cook over low heat, stirring continuously, until the butter is melted and the ingredients are well combined.

Add Chocolate: Add the chopped sweet chocolate to the saucepan. Continue to cook, stirring constantly, until the chocolate is completely melted and the mixture is smooth and glossy.

Cool: Remove the saucepan from the heat and let the mixture cool to room temperature. This will allow it to thicken slightly, making it easier to shape into truffles.

Portion Out: Once the truffle mixture has cooled, use a spoon or a small cookie scoop to portion out small amounts of the mixture.

Form Truffles: Roll each portion between your palms to form smooth, round truffles. Place the shaped truffles on a parchment-lined baking sheet, leaving some space between each one.

Prepare Coating: Pour the chocolate sprinkles into a shallow dish or plate.

Coat Truffles: Gently roll each truffle in the chocolate sprinkles until they are evenly coated.

Chill: Place the decorated truffles back onto the parchment-lined baking sheet and refrigerate them for at least 30 minutes to allow them to firm up.

Ready to Serve: Once the chocolate truffles are firm, they are ready to be served and enjoyed.

Serving Options: Serve these decadent treats on a platter or in decorative boxes or bags for gifting.

Storage: Store any leftover truffles in an airtight container in the refrigerator for up to two weeks.