Russian
Heat the oven to 180C and grease a 20 x 20 cm baking dish with the butter.
Mash the farmer cheese with a fork or press it through a sieve until smooth.
Whisk the eggs with the sugar, vanilla and salt, then stir in the farmer cheese and 3 tbsp sour cream.
Stir in the semolina and let the mixture stand for 15 minutes so the semolina swells.
Spread the mixture evenly in the dish and smooth the top.
Bake for 35 to 40 minutes, until set and golden on top.
Cool for 10 minutes, cut into 6 pieces and serve warm or cold with sour cream.