Add all of the ingredients to a blender and mix long enough for the butter to incorporate.
Allow your crêpe batter to rest for at least an hour.
Heat a flat, non-stick crêpe pan. Spread a little butter on the surface with a paper towel, and pour a thin layer of batter into the pan.
Once the crêpe starts to brown a little on the bottom, lift the sides with your spatula, flip the crêpe, and remove it once browned on both sides.
Repeat until you have used all the batter.
Notes
From experience, we tend to say here that your first crêpes could be quite a mess, but your last ones are perfect.Here in Provence, we love to have crêpes with a few drops of lemon and sugar, honey, or homemade jam.