Mix flour, baking powder and 1/2 teaspoon salt in a bowl. Add 125 g butter in pieces, 1 egg and 2-3 tablespoons of water and knead with the dough hooks of the hand mixer. Finally, knead quickly with cool hands to a smooth short pastry, wrap in foil and put in a cool place for about 1 hour. In the meantime peel the vegetable onion and cut it into slices. Heat the remaining butter in a pan and fry the onions briefly while turning.
Let them cool down. Wash the tomatoes, dab dry and cut in half. Wash parsley and basil, dab dry and chop except for a little bit for garnishing. Mix cream cheese, cream, remaining eggs and herbs. Season with salt and pepper. Roll out the short pastry on a floured work surface to a circle (32-34 cm Ø) and line a greased quiche dish (28 cm Ø) sprinkled with breadcrumbs. Cut off any excess dough. Prick the bottom of the pastry several times with a fork and cover with tomatoes and onions. Pour the herb cream cheese mixture over it. Bake in the preheated oven, 2nd shelf from below (electric oven: 200 °C/ gas: level 3) for approx. 45 minutes.
Roll out the short pastry on a floured work surface to a circle (32-34 cm Ø) and line a greased quiche dish (28 cm Ø) sprinkled with breadcrumbs. Cut off any excess dough. Prick the bottom of the pastry several times with a fork and cover with tomatoes and onions. Pour the herb cream cheese mixture over it. Bake in the preheated oven, 2nd shelf from below (electric oven: 200 °C/ gas: level 3) for approx. 45 minutes. Serve garnished with fresh herbs. Makes approx. 12 pieces