Step 1
Combine the condensed milk, cocoa powder and butter in a 1L (4 cups) microwave-safe bowl. Manual Cook at 100% for 4 mins, stirring halfway.

Step 2
Use a whisk to whisk until the mixture is smooth and glossy. Set aside to cool. Place in the fridge for 1 hour or until set.

Step 3
Place the Sprinkles in a bowl. Use 2 teaspoonfuls of the mixture to roll into smooth balls. Toss into the sprinkles to coat. Transfer to a lined tray and place in the fridge for 30 minutes to rest.

Step 4
Serve the truffles in paper cases, if desired.