For the poppy seed cake, beat the egg whites with a pinch of salt until stiff. Beat the yolks, powdered sugar, vanilla sugar and grated lemon zest until foamy. Add poppy seed oil and mix again briefly.
Then add a small shot of rum and grated poppy seeds to the batter. Fold in 1 shot of mineral water (as a leavening agent), the wholemeal spelt flour and finally the beaten egg whites.
Pour into a greased and floured (high) baking pan and bake in the oven on the lower setting at approx. 160 °C.
Preparation Tip:
Instead of the rum, you can also just use a little more mineral water for the poppy seed cake.