Melt butter in a saucepan.

Add the flour and stir well to create a roux.

Gradually add the milk, stirring constantly to avoid lumps.

Bring the mixture to a boil while stirring continuously.

Continue to boil for a few minutes until thickened, then remove from heat.

Beat in the egg yolks until fully incorporated.

Simmer for 2 to 3 minutes, stirring constantly.

Season with salt and pepper to taste.

Rinse a bowl with water and place the dough into it.

Allow the dough to cool slightly.

Tip the bowl to slide the dough onto a plate.

Dip a spoon in water and use it to form the dough into small balls.

Place the dumplings in simmering water or broth.

Cook until the dumplings float and are cooked through.

Sprinkle with finely chopped parsley to garnish.

Serve hot.