In a large bowl, mix grated cheese, yucca starch, sugar and salt (if the cheese is not salty).

Finally add milk, pouring little by little until having a smooth, but not dry, dough.

Remove the dough from the bowl and place it on a table sprinkled with some yucca starch.

Knead until the dough is smooth and even. Make small balls. With the forefinger, make a small hole at the bottom of each ball.

Place the cuñapés in a yucca-starch-sprinkled baking sheet, with the hole in direct contact with the sheet.

Bake in a previously pre-heated oven at 180°C for twenty to twenty-five minutes, or until cuñapés are golden.