Place the pears on a large sieve and drain well. Coarsely chop the walnuts. Cream 250 g soft fat, 200 g sugar, 1 sachet vanilla sugar, salt and grated lemon peel. Add the eggs and cornstarch alternately and stir until creamy. Mix flour and baking powder, add to the egg-fat mixture and stir in briefly. Finally fold in 100 g walnuts. Grease the fat pan of the oven and spread the dough evenly on top.
Cover with pear halves and sprinkle with remaining walnuts, sugar and vanillin sugar. Spread the remaining fat in flakes on top and bake in the preheated oven (electric: 200 °C/ gas: level 3) for about 30 minutes. Let the finished cake cool on the fat pan. Coarsely chop the chocolate coating and melt on a hot water bath. Put the couverture into a freezer bag and cut off a small corner. Cut the cake into approx. 24 pieces and decorate with chocolate door strips
Waiting time approx. 1 hour