Add condensed milk, butter, and cocoa powder on a heavy bottom pan in medium heat and mix it well
Continue stirring and cooking until it thickens. When the mixture starts un-sticking off the bottom, wait an extra minute and remove it from the heat
Pour the mixture onto the lightly greased plate and let it cool down. You can put it in the refrigerator to speed up the process
Once cold roll the mixture into little balls and then roll them over the sprinkles
Place the balls in mini baking cups and voila! Enjoy!
