Scratch tomatoes crosswise. Put them in a bowl and add boiling water. Then rinse with cold water and remove the skin. Cut the tomatoes into small pieces. Peel onions and garlic. Chop the onions finely. Crush 1 garlic clove finely, cut the rest into very thin slices. Wash the marjoram, shake dry and remove the leaves
Heat 1 tablespoon of oil in a saucepan. Sauté the garlic cubes and half of the onion cubes in it. Sprinkle with approx. 1⁄2 tsp. sugar and caramelise slightly. Add tomatoes and simmer covered for about 15 minutes. Season with salt and pepper
Meanwhile cook the noodles in plenty of boiling salted water (approx. 1 teaspoon salt per litre) according to the instructions on the packet
Wash the basil, shake dry and pluck the leaves. Chop half the basil. Drain the noodles and let them drain. Heat 3 tablespoons of oil in a large frying pan. Fry the garlic slices until golden brown. Add spaghetti and whole basil and
sauté everything in garlic oil
Season tomato sauce with salt, pepper and sugar. Arrange garlic spaghetti with tomato sauce on four plates. Use two tablespoons of robiola to cut off 4 cams and spread them on the spaghetti. Serve immediately