Wash the lemons and grate them dry. Finely grate the peel. Squeeze the juice. Whip the fat, sugar, lemon zest and 1 pinch of salt with the whisk of the hand mixer until thick and creamy. Stir in the eggs one by one. Mix flour, starch and baking powder.
Alternately stir in the lemon juice. Grease a clover shape (2.5 litres capacity) and dust with flour. Fill in the dough and smooth it down. Bake the cake in a preheated oven (electric cooker: 175 °C/ convection oven: 150 °C/ gas: level 2) for 55-65 minutes. Remove the cake from the oven and place it on a cake rack. Leave to rest for 10 minutes, turn out of the tin and let it cool down (approx. 2 hours). Sieve 175 g icing sugar into a bowl, add egg white and mix to a thick icing. Take off 1-2 tablespoons and fill into a freezer bag. Colour the remaining icing green with food colouring. Stir lemon juice a little thinner with a few squirts if the icing is too thick. Cover cake with icing and let it dry for about 45 minutes.
Sieve 175 g icing sugar into a bowl, add egg white and mix to a thick icing. Take off 1-2 tablespoons and fill into a freezer bag. Colour the remaining icing green with food colouring. Stir lemon juice a little thinner with a few squirts if the icing is too thick. Cover cake with icing and let it dry for about 45 minutes. In the meantime knead marzipan and 1 tablespoon of icing sugar. Colour green with food colouring. Roll out marzipan on icing sugar and cut out 8-10 cloverleaves (4 cm Ø). Cut a small corner from the freezer bag. Paint the grain of the clover leaf with white cast. Decorate the cake all around with marzipan cloverleaves
In the meantime knead marzipan and 1 tablespoon of icing sugar. Colour green with food colouring. Roll out marzipan on icing sugar and cut out 8-10 cloverleaves (4 cm Ø). Cut a small corner from the freezer bag. Paint the grain of the clover leaf with white cast. Decorate the cake all around with marzipan cloverleaves
2 1/2 hours waiting time