Mix flour and baking powder. Add sugar, vanillin sugar, egg yolk, 1 tablespoon cold water and butter in pieces. Knead into a smooth shortcrust pastry. Wrap in foil and put in a cool place for about 30 minutes. Roll out the short pastry on a half greased fat pan (34x38 cm/or 30x36 cm) to a rectangle of approx. 18 cm width. Prick the base several times with a fork.
Line the open side of the pastry with a strip of aluminium foil folded several times and possibly place a box cake baking tin against it. Bake in the preheated oven (electric: 175 °C/ gas: level 2) for about 20 minutes. Meanwhile melt butter and let it cool down. Separate 2 eggs. Mix quark, egg yolk, remaining whole eggs, 75 g sugar, vanillin sugar, lemon zest and flour. Finally, stir in liquid butter. Spread the quark mixture on the hot shortcrust pastry base and bake for another 20-25 minutes. In the meantime beat 3 egg whites until stiff and finally add the remaining sugar while stirring. Stir in lemon juice as well. Put the meringue mixture into a piping bag with a star-shaped spout. Spray the meringue lengthwise as three, approx. 6 cm wide strips in a wavy pattern onto the pre-baked curd mixture (do not spray too closely as the meringue expands during baking).
Finally, stir in liquid butter. Spread the quark mixture on the hot shortcrust pastry base and bake for another 20-25 minutes. In the meantime beat 3 egg whites until stiff and finally add the remaining sugar while stirring. Stir in lemon juice as well. Put the meringue mixture into a piping bag with a star-shaped spout. Spray the meringue lengthwise as three, approx. 6 cm wide strips in a wavy pattern onto the pre-baked curd mixture (do not spray too closely as the meringue expands during baking). Bake for another 25-30 minutes. Let the cake cool completely on the fat pan. Remove the aluminium foil rail and cut the cake into three strips. Cut each strip into 4 pieces, dust with icing sugar and arrange on a plate. Results in about 12 pieces
Bake for another 25-30 minutes. Let the cake cool completely on the fat pan. Remove the aluminium foil rail and cut the cake into three strips. Cut each strip into 4 pieces, dust with icing sugar and arrange on a plate. Results in about 12 pieces