Russian pancakes buckwheat in half with wheat flour

Pancakes and fritters
Russian pancakes buckwheat in half with wheat flour
Early in the morning or in the evening to dissolve dough from 400 g of wheat flour, 3 glasses of warm water and 10 g of dry yeast, stir, put in a warm place; when it rises, beat out the dough with a spatula, pour in 1 teaspoon of salt, 1 teaspoon of sugar and 400 g of buckwheat flour, let rise; half an hour before baking pancakes to dough, 3 cups of boiling water, let it rise again and bake. 
During baking, pouring the dough into a frying pan, you can immediately pour finely chopped onion or green onions. 
Serve with pancakes caviar, mushrooms, or preheated honey.