Russian
Whisk the eggs, sugar and salt in a large bowl until smooth.
Add half of the milk, then sift in the flour and whisk into a thick, lump-free batter.
Whisk in the remaining milk and 30 ml of the oil; the batter should be thin and pourable. Let it rest for 15 minutes.
Heat a 22-24 cm frying pan over medium-high heat and brush it lightly with oil.
Pour in about 50 ml of batter, tilting the pan so it spreads in a thin, even layer, and cook for about 1 minute, until the edges turn golden and lift easily.
Flip the blin, cook the other side until lightly spotted, and slide it onto a plate.
Repeat with the remaining batter, stacking the blini and greasing the pan only when they start to stick, and serve warm.