Put to 1.25 L boil salted water. After boil, get out the pan from the heat and add gradually, stirring continuously semolina. The pan back on the stove and stirring over low heat boil to thicken. Leave to cool completely. With the mixer break up as semolina add a trickle the oil, grated onion, egg yolks, lemon juice and paprika. Decorate with parsley and olives.