Clean, wash and slice the aubergines. Sprinkle with salt and let it steep a little. Wash the tomatoes. Cut tomatoes and mozzarella into slices
Heat the oil in a coated pan. Dab the aubergines dry and fry them. Season with pepper, take out
Peel and chop the onion. Fry in hot butter. Sweat flour in it. Stir in milk, 1/8 l water and stock. Bring to the boil and simmer for about 5 minutes. Seasoning
Cover the bottom of an ovenproof dish with some sauce. Layer tomatoes, eggplants, mozzarella and ham like roof tiles. Pour the rest of the sauce over it
Wash the basil, pluck off the leaves and, except for a few for garnishing, sprinkle on top. Grate the parmesan on top. Bake in the preheated oven (electric cooker: 200 °C/circulating air: 175 °C/gas: level 3) for approx. 35 minutes. Garnish with basil
Drink: mineral water