Clean the leek sticks, wash them thoroughly and cut into pieces. Sauté in the hot butter in a saucepan. Add an eighth of a liter of water and a little salt, cook in a closed saucepan over a low heat for ten minutes.
Peel the onion and garlic and dice. Sauté in the oil, add the peanut cream and coconut milk and bring to the boil, stirring constantly. Season with soy sauce, sambal oelek (hot) and lemon juice. Fold in egg yolks, do not boil anymore.