Here is a simple 3 ingredients on how to make a delicious Yema.
1 can condensed milk
3 egg yolk
2 tablespoon butter
Place butter in slow heat and melt.
Add condensed milk and stir.
Add whole egg yolks and stir till it thickens in slow heat.
Allow it to cool.
Grab a teaspoon full and roll to a ball shape and enjoy!