Defrost the puff pastry. Wash the tomatoes, dab dry. Wash basil, shake dry. Remove the leaves and cut into strips, except for a few for garnishing. Peel and finely dice the shallot. Mix sour cream, eggs, shallot and basil strips. Season with salt and pepper
Line a tart mould with removable base (26 cm Ø) with baking paper. Place the slices of dough on top of each other and roll out round on a little flour (approx. 34 cm Ø). Put the dough into the tin. Prick the base several times with a fork. Sprinkle with breadcrumbs. Spread the tomatoes on top and pour the custard over it
Bake in the preheated oven (electric oven: 200 °C/circulating air: 175 °C/gas: level 3) for 30-35 minutes. Finely chop the rest of the basil and sprinkle on top
Drink: cool wine spritzer