Grease a springform pan (26 cm Ø; approx. 8 cm high) and dust with flour. Drain the pears. Coarsely chop the chocolate coating, melt 100 g in a hot water bath. Cool down for about 5 minutes.
Separate two eggs. Cream fat, 100 g sugar, vanillin sugar and 1 pinch of salt. Gradually add the liquid chocolate coating, then 2 egg yolks and 2 eggs separately. Mix flour, starch, cocoa and baking powder, alternating with the milk and stir in briefly. Spread into the mould
Place the pear halves on the dough with the curvature facing upwards and press them in lightly. Bake in the preheated oven (electric oven: 175 °C/circulating air: 150 °C/gas: level 2) on the lowest shelf (gas: see oven manufacturer) for approx. 30 minutes
Beat 2 egg whites and 1 pinch of salt until stiff, adding 125 g sugar. Spread the hot cake in waves, leaving about 1 cm free at the edge. Continue baking for about 25 minutes. Cool down in the tin
Melt 50 g chocolate coating. Spoon onto the cake and let it dry. Dust with icing sugar