Defrost the scallops if necessary. For the risotto, peel onion and garlic and dice finely. Bring 800 ml water to the boil. Dissolve stock in it. Heat 2 tablespoons of oil in a saucepan. Sauté onion and garlic in it until transparent.
Add the rice and brown. Add wine and gradually pour in broth. Add bay leaf. Simmer rice open at low heat for 18-20 minutes.
Finely grate the parmesan. Peel the skin from the chorizo and dice the sausage finely. Rinse scallops and dab dry. Heat 2 tablespoons of oil in a frying pan. Fry the chorizo for about 2 minutes. Add the scallops and fry for 2-3 minutes, turning them over.
Wash the parsley, shake dry and cut the leaves finely.
Stir butter and parmesan into the risotto. Season to taste with salt and pepper. Serve the risotto with mussels, chorizo and the chorizo frying oil. Sprinkle with parsley.