For the juicy blueberry cake, first separate the eggs. Beat egg whites with 1 tablespoon granulated sugar until stiff. Beat egg yolks with remaining sugar until foamy.
Stir in the yogurt. Then mix in the spelt flour. Finally, fold in the snow. Pour into a greased and floured baking pan.
Spread the blueberries on the dough. Bake the juicy blueberry cake at 180 ° for 30 minutes.