Beat the eggs.
Add the salt and granulated or vanilla sugar and mix well.
Incorporate the milk into the egg mixture.
Next, add the flour and whisk until the batter is smooth.
Add the rum or orange blossom water and the lemon zest.
In a crêpe pan or regular skillet, melt a bit of butter between each crêpe over medium heat.
Pour in a ladleful of batter and spread it evenly over the pan. Cook each side for about 2 minutes, or until the crêpe is golden.
Repeat until all the batter is used.
Serve hot with maple syrup, Nutella, or a dusting of powdered sugar. Garnish with fresh berries.