Cream fat, sugar, salt and vanilla sugar with the whisk of the hand mixer. Stir in the eggs one after the other. Add bitter almond flavour. Mix flour and baking powder and stir in.
Stir in 50 ml milk. Line the bottom of a springform pan (26 cm Ø) with baking paper. Fill in the dough and smooth it down. Bake in a preheated oven (electric: 175 °C/ gas: level 2) for 20-25 minutes.
Remove the cake from the oven, remove it from the edge of the springform pan with a knife and let it cool down on a cake rack. Meanwhile wash the strawberries (cut 2-3 strawberries in half and put them aside for decoration), clean and quarter them.
Remove the cooled base from the springform pan, cut through 1x. Put the remaining milk and cream (both at room temperature) into a mixing bowl, add mousse powder. Stir with the whisks of the hand mixer on the lowest setting.
Beat for 3 minutes at highest setting until creamy. Carefully fold the strawberries into the cream. Place the bottom half of the cake base on a cake plate, place the springform pan rim around it and spread the strawberry cream evenly on top.
Place the top shelf on top. Put the cake in a cool place for about 1 1/2 hours. Mix the jam with a fork. Knead marzipan and icing sugar. Roll out on a work surface lightly dusted with icing sugar and cut out about 40 petals with a cutter.
Remove the springform pan rim from the cake. Spread the cake with jam. Press part of the petals to the edge of the cake. Spread the remaining marzipan flowers on the cake. Decorate with the strawberries and place 2-3 marzipan bunnies on top.