Peel and finely grate the carrots. Put flour, baking powder, sugar, vanillin sugar, salt and cinnamon in a mixing bowl and mix well. Add oil and stir in. Stir in the eggs one by one. Add carrots and almonds to the dough. Pour the dough into a greased springform pan (26 cm Ø) sprinkled with flour and smooth it down.
Bake in a preheated oven (electric oven: 175 °C/circulating air: 150 °C/gas: see manufacturer) for 50-60 minutes. Cover cake with aluminium foil for the last 20 minutes if necessary. Remove from the oven, place on a cake rack, remove from the edge of the springform pan and allow to cool.
Cream cheese and cream with the whisk of the hand mixer until smooth. Add icing sugar and whisk until thick and creamy. Remove the base from the mould and spread loosely with the topping. Cut into pieces and decorate with lemon balm.