Ficelle Picarde wraps mushrooms, ham, and creamy béchamel inside soft crêpes, then bakes everything until the top turns golden and irresistible for a comforting family dinner.
Put all the ingredients in an electric mixer and blend for a couple of minutes until the batter is smooth.
Let the batter rest in the fridge for 30 minutes.
Heat a non-stick frying pan. When it is hot, add ¼ teaspoon of butter and a ladle of batter while swirling the pan so the batter coats the base evenly. The coating should be about 2 mm – 0.08 inches thick. When the surface of the crêpe dries, loosen the sides with a plastic spatula and flip it over. Cook for 1 more minute, then remove it from the pan. Repeat until all the batter is used.