Wash lemon hot, grate dry, grate peel thinly. Halve the fruit and squeeze the juice. Cut the vanilla pod lengthwise and scrape out the pulp with the back of a knife. Separate the eggs. Mix egg yolks, quark, 4 tbsp. sugar, vanilla pulp, 2 tsp. starch, 1 tbsp. lemon juice and 4 tbsp. breadcrumbs. Leave to swell for about 5 minutes. Beat the egg whites and 1 tbsp. sugar with the whisk of the hand mixer until stiff and fold in
Heat clarified butter in a frying pan. Cut the cams with 2 tablespoons in portions and fry them in the hot lard for about 3 minutes, turning them over. Place on a baking tray lined with baking paper. Finish baking in a preheated oven (electric cooker: 160 °C/ convection oven: 140 °C/ gas: level 1) for approx. 6 minutes
Finely grind the biscuits. Melt butter in a pot. Fry the biscuit flour and 1 tbsp. breadcrumbs for about 3 minutes while stirring. Season with lemon peel and sweeten with brown sugar
Peel the orange so that the white skin is completely removed. Remove the fillets between the parting skins. Squeeze the juice out of the parting skins. Place the fillets in an ovenproof dish and braise in the oven at the same temperature for 7-10 minutes. Bring orange juice to the boil, except for 2 teaspoons, 1 tablespoon sugar and vanilla pulp. Stir 1/2 tsp. starch and 2 tsp. orange juice until smooth. Bind the juice with it. Arrange crumbs, orange fillets and dumplings. Sprinkle with orange syrup