Defrost the spinach, squeeze the liquid. Chop the chocolate and melt over a warm water bath. Roughly chop the spinach with a knife. Finely puree the spinach with oil in portions with the universal chopper. Stir in the lemon peel and juice of 1 lemon. Whisk eggs, sugar and vanilla sugar with the whisk of the hand mixer until thick and creamy. Mix flour and baking powder. Add the spinach mixture and flour alternately to the egg mixture and work into a smooth dough. Fold in melted chocolate
Grease the pancake tin (2 litres capacity) and dust with flour. Pour in the dough. Bake in the preheated oven (electric cooker: 175 °C/ convection oven: 150 °C/ gas: see manufacturer) for approx. 1 hour. Take out of the oven and let rest in the form for about 10 minutes. Turn out onto a cake rack and let it cool down. Sieve the icing sugar into a bowl. Add 4-5 tablespoons lemon juice. Mix with the whisks of the hand mixer to a smooth, thick glaze. Spread the icing on the cake. Decorate with flowers and leave to dry
waiting time approx. 3 hours