01 -
In a large mixing bowl, whisk together the flour and salt. Make a well in the center, add eggs, and begin incorporating flour into eggs. Gradually pour in milk while whisking continuously until the batter is completely smooth. Stir in the melted butter. Cover and let rest at room temperature for 30 minutes.
02 -
Set a nonstick skillet over medium heat for 2–3 minutes. Lightly brush the pan with melted butter to coat the surface evenly.
03 -
Pour around 60 ml of batter into the center of the hot pan. Quickly swirl the pan to spread the batter into a thin, even layer. Cook for 1–2 minutes until the edges lift and the underside is lightly golden. Flip and cook the other side for 30 seconds. Transfer to a plate and keep warm. Repeat with remaining batter, brushing the pan with butter as needed.
04 -
Lay one crêpe flat. Spread a thin layer of Dijon mustard down the center, if using. Place a slice of ham and sprinkle with Gruyère cheese. Fold the crêpe in half, then in half again to form a triangle with filling inside.
05 -
Return filled crêpes to the skillet over medium heat. Press gently and cook 1–2 minutes per side until cheese is fully melted and the crêpe is crisp-edged. Serve immediately garnished with parsley and black pepper, if desired.