To begin, take a large mixing bowl and whisk together the eggs, milk, sugar, vanilla sugar, and salt until smooth. Gradually sift in the flour while whisking continuously to prevent lumps forming. The mixture should resemble a thin pouring batter. Once combined, stir in the sparkling water and oil to loosen the texture and set aside for the next step.
Allow the batter to rest for about 20 minutes at room temperature. This short resting period relaxes the gluten in the flour and creates a smoother, more elastic crepe. Stir gently before cooking so the ingredients remain evenly blended as you prepare the pan.
Place a medium non stick frying pan or traditional crepe pan over medium heat. Lightly grease the surface with a small amount of oil or butter using a folded piece of kitchen paper. The pan should be hot but not smoking before pouring in the batter.
Pour a small ladle of batter into the centre of the pan and quickly tilt the pan in a circular motion so the batter spreads into a thin even layer. Cook for about 45 to 60 seconds until the edges begin to lift and the underside develops a pale golden colour.
Using a thin spatula, gently loosen the edges and flip the crepe. Cook the second side for about 30 seconds. Hungarian palacsinta should remain soft and flexible rather than crisp. Transfer the cooked crepe to a plate and continue cooking the remaining batter in the same manner.
Stack each cooked crepe neatly on top of the previous one. If cooking a large batch, cover the stack loosely with a clean tea towel to keep them soft and warm while you prepare the fillings.
Lay one crepe flat on a plate and spread a thin layer of apricot jam or sweetened cottage cheese across the surface. Keep the filling modest so the crepe remains easy to roll without tearing.
Roll the crepe into a neat cylinder or fold it into quarters, depending on your preferred presentation. Continue filling the remaining crepes until all are prepared.
For a traditional café style finish, place the filled crepes briefly in a warm pan or low oven for a minute or two so the filling softens slightly and the crepes regain warmth.
Arrange the palacsinta on a serving plate and dust lightly with icing sugar. They are often served alongside strong coffee or tea. Additional fillings such as chocolate spread or walnuts can be offered at the table for variety.