1.5 glass of sugar
a) 3 egg whites + ½ glass of sugar;
b) 3 egg yolks + ½ glass of sugar;
c) sour cream + ½ glass of sugar.
Mix a, b, and c. Add baking soda, vanilla sugar and flour. Mix well. Roll out the dough to 0.4 - 0.5 mm thickness and cut in ~2 x 5 cm pieces. Cut a hole in the middle of the piece, and pull one of ends through the hole. Deep fry in the boiling oil until the cruller becomes light brown in color (~2 min). Sprinkle the finished crullers with vanilla sugar powder.