Add egg yolks to a mixing bowl.

Add sugar to the egg yolks.

Add salt to the mixture.

Mix well until the sugar particles dissolve completely.

Add baking powder to the mixture.

Pour in the milk and mix well.

Optionally, add vanilla oil drops for flavor.

Stir again thoroughly until the baking powder is fully incorporated and invisible.

Prepare a sieve for the flour.

Add all-purpose flour through the sieve.

Sift the flour into the mixture and stir until no white flour is visible.

Continue mixing until a sticky yellow batter forms. The batter is ready.

Cut a piping bag to create an opening of about 3 cm in diameter.

Transfer the batter into the piping bag.

Heat a generous amount of cooking oil in a pan over medium-low heat.

Wait until the oil is hot and boiling.

Squeeze the batter into the hot oil in appropriate sizes.

Cut the batter with scissors as you pipe it into the oil, adding it carefully.

Stir and fry the donuts for about 4 minutes.

Once the donuts are golden brown, remove them from the oil.

In a bowl, combine powdered sugar and milk.

Stir until the powdered sugar is completely dissolved.

Apply the glaze to the donuts in circular motions.