Cream fat, sugar and vanillin sugar. Stir in eggs bit by bit. Mix flour, cornstarch and baking powder, sieve onto the egg mixture and stir in. Stir in the milk. Turn undefrosted raspberries in the flour and fold into the dough.
Pour into a greased cupcake tin (approx. 3 litres capacity) sprinkled with breadcrumbs. Bake in a preheated oven (electric: 200°C/ gas: level 3) for 60-70 minutes. Cover the cake after half the baking time.
Leave to rest in the mould for about 10 minutes, turn out onto a cake rack and let it cool down. Melt the couverture and cake glaze and pour over the cooled cake. Leave to dry for approx. 1 hour.