1. Sift the rye flour in a large bowl, pour in the serum, stir carefully and leave in a warm place for 3 hours. You can add a little water if very thick.

2. Then, sift buckwheat flour, add it to the rye, stir with a spoon and whisk.

3. Grind in different utensils, butter and egg yolks with the icing sugar white. Powdered sugar in each Cup 1 teaspoon.

4. To connect with the dough, gently push at the beginning of the oil and then the egg mixture, whisking the batter.

5. Whisk egg white with a pinch of salt in a lush foam. Pour in the dough milk (1.5-2 cups), stir, then enter whipped whites and gently stir to combine.

6. The pan (I have a ceramic ware for baking) butter. Pour into it the dough...

7... and bake in a preheated 190 °C oven until Golden brown, 30-40 minutes.

8. While dracena baked, peel and chop onions. Put the onion in the heated oil and fry over medium heat, stirring often, until Golden brown.

9. Ready dracena, serves, watering melted butter and fried onion. It turns out dracena delicate taste. Her need to serve it piping hot and eat immediately. Although the next day, reheating it in the microwave, it is also delicious! Bon appetit! PS Whey - is obtained in the process of production of cheese. If you take sour milk or yogurt, heat it over low heat but do not boil, then strain through cheesecloth, the cheese will stay inside the fabric, and sheer, cloudy liquid that will remain is the whey.