Fry in olive oil or butter a sliced lamb's kidney, a tablespoon-ful of chopped ham, four fresh mushrooms finely minced, and one green chili, an onion, some parsley and a bay leaf, all chopped as finely as possible. Now add three skinned and sliced tomatoes and a cupful of clear stock; simmer this gently for half an hour, when it will be ready.

Now whip separately the whites and yolks of six eggs and stir them together with half a tablespoonful of flour previously mixed with the same quantity of milk and a little pepper and salt. Pour into a buttered pan and cook lightly. Before folding the omelette pour upon it the sauce described above.