Make the batter

• Whisk the eggs with the sugar and vanilla sugar in a mixing bowl
• Add the oil, milk and vinegar and whisk until combined
• Sift in the flour and whisk to a smooth batter

Add the boiling water

• Pour in the boiling water while whisking
• Whisk until the batter is thin and lump-free

Rest the batter

• Let the batter rest so the flour hydrates

Cook the crêpes

• Heat a lightly oiled frying pan over medium heat
• Pour in a ladle of batter and swirl to coat the pan thinly
• Cook until the edges set, then flip and cook the other side

Serve

• Stack the crêpes and serve warm