Cream fat, sugar, vanillin sugar and salt with the whisk of the hand mixer. Add lemon zest and stir in. Add the eggs one by one and stir in. Mix flour, starch, baking powder and almonds and stir in portions, alternating with 3 tablespoons of lemon juice.
Grease a small baking tray (approx. 28x33 cm) and sprinkle with breadcrumbs. Put the dough on it and smooth it down. Bake in the preheated oven (electric cooker: 175 °C/ gas: level 2) for about 25 minutes.
Mix icing sugar, orange juice and remaining lemon juice. Take the cake out of the oven and spread the icing immediately. Leave to dry. Decorate as desired with strips of lemon and orange peel and lemon balm.
Results in about 20 pieces.