01 -
Melt butter in a pan on low heat.
02 -
Add condensed milk and stir until combined.
03 -
Add egg yolks and a pinch of salt. Stir continuously until the mixture thickens significantly, about 20 minutes.
04 -
Transfer the mixture onto a slightly greased plate or clean surface. Allow it to cool completely.
05 -
Scoop a teaspoon of the yema mixture and shape it into a ball. Coat each ball with sugar and serve.