I honestly don't know. When I think of my favorite dish to my mind always comes something like lagman, plov... Which are not Russian. When I think of my favorite dish in Russian cuisine..... There's a thing called Perepechi. It's like a tartlet, but made from a flatter dough. The diameter of this thingy is about 10-12 centimeters. There are different fillings, traditionally, it's meat. However, I prefer it with eggs. You can also make it with mushrooms, potatoes, fish, or cabbage.