Add condensed milk, cocoa, butter, and salt to a small saucepan. Stir before you even turn on the heat so the cocoa doesn’t clump too much.

Cook on low to medium low heat, stirring often.

After about 10 to 15 minutes, the mixture thickens and starts pulling away from the bottom of the pot. When you drag a spoon through it, you should see the bottom for a second before it fills back in. That’s your sign.

Scrape it onto a plate and let it cool fully.

Butter your hands lightly, scoop small portions, roll into balls, then roll in sprinkles. Pop each one into a paper cup if you want them to look party ready.