Mix eggs, flour, milk, sparkling water, salt, and sugar until you have a smooth, lump-free batter.
Heat a non-stick pan over medium heat and add oil to coat it.
Pour ¼ cup of batter into the pan, swirling to coat the bottom evenly.
Cook for 1-2 minutes until bubbles form on the surface and the edges turn slightly golden.
Flip and cook for an additional 1-2 minutes until both sides are golden brown.
Repeat with the remaining batter, adding more oil as needed.
In a separate bowl, combine egg yolks, cheese, lemon zest, and vanilla extract.
Spread a thin layer of filling on each pancake and roll tightly.
Place rolled pancakes on a baking sheet, and bake at 350°F for 10-12 minutes until heated through and slightly crispy.
Notes
For added flavor, you can add a dash of cinnamon or nutmeg to the pancake batter.
If you don't have sparkling water, you can substitute it with regular water, but the pancakes may not be as light and fluffy.
You can use any type of cheese for the filling, such as cottage cheese, ricotta, or cream cheese. Each will provide a unique flavor and texture to the dish.
Experiment with different fillings, such as fruit preserves, chocolate spread, or even savory options like ham and cheese.
Be creative with your presentation by cutting the pancake rolls into smaller pieces for bite-sized treats or arranging them in a spiral on a plate.