These fluffy pancakes are common throughout Eastern Europe. Serve them straight from the pan with a dollop of sour cream, a spoonful of jam, or a drizzle of honey for a simple but deeply satisfying breakfast or snack.
In a large bowl, whisk together the flour, sugar, baking soda and salt.
Make a well in the flour and add the kefir (or buttermilk) and the eggs. Whisk until just combined. Fold in the sultanas, if using.
Add 1-2 tbsp of neutral oil to a large skillet (I like cast iron) and set over medium heat. Allow the pan to preheat for 2-4 minutes. Use a large spoon or a small ice cream scoop to portion the batter into the pan, being careful not to overcrowd. Cook the pancakes until you see bubbles appear and begin to pop - about 3-5 minutes. Flip and cook on the other side until golden, 3-5 more minutes.
Repeat with the remaining batter. Serve the pancakes immediately - topping with jam, sour cream or honey.