Knead 200 g flour, fat in flakes, 1 egg, 1/2 tsp salt and 3 tbsp cold water to a smooth dough. Chill for about 30 minutes
Wash the potatoes and cook for about 15 minutes. Peel, wash and chop the carrots. Clean, wash and cut the savoy cabbage into strips. Peel and chop onion
Heat the oil. Sauté vegetables in it. Quench, peel and slice the potatoes. Whisk milk, 4 eggs and 200 g sour cream, season
Roll out the dough onto some flour (approx. 40 cm Ø) and line a tart tin (30 cm Ø) with it. Layer potatoes and vegetables. Pour over the mixture
Bake in a hot oven (electric cooker: 200 °C / convection oven: 175 °C / gas: level 3) for 45-50 minutes. Wash and chop parsley. Garnish vegetable cake with the rest of sour cream and parsley