Popular choices:
* Medovik (Honey Cake): A layered cake made with honey, butter, and eggs, often filled with sour cream or custard.
* Vatrushka (Cheesecake): A sweet pastry filled with quark (a type of fresh cheese), often topped with berries or jam.
* Pirozhki (Pastries): Small, savory or sweet pastries filled with various ingredients like cabbage, potatoes, meat, or fruit.
* Syrniki (Cheesecakes): Fried pancakes made with quark, eggs, and flour, often served with sour cream or jam.
* Napoleon (Cake): A layered cake with flaky puff pastry, filled with pastry cream and often topped with whipped cream.
* Olad'i (Pancakes): Fluffy pancakes served with various toppings like sour cream, jam, honey, or fruit.
The "most famous" dessert really depends on personal preference and regional specialties. Some people might consider Medovik or Napoleon to be the most well-known, while others might favor traditional pastries like Vatrushka or Pirozhki.