01 -
In a large bowl, whisk together flour and sea salt, create a well in the center, and add eggs. Gradually whisk in milk until smooth. Stir in melted butter, cover, and let rest for 30 minutes at room temperature.
02 -
Preheat a nonstick skillet over medium heat for 2 to 3 minutes. Lightly brush with melted butter to prevent sticking and promote crisp edges.
03 -
Pour 1/4 cup (60 ml) batter into the hot skillet and swirl to spread thinly and evenly. Cook for 1 to 2 minutes until edges lift and bottom is golden. Flip and cook 30 seconds more. Transfer to a plate and keep warm. Repeat with remaining batter, re-buttering skillet as needed.
04 -
Place one crêpe flat, optionally spread Dijon mustard down the center, layer with ham slice and sprinkle with grated Gruyère. Fold crêpe in half, then in half again to form a triangle enclosing the filling.
05 -
Return filled crêpes to skillet over medium heat, press gently, and cook 1 to 2 minutes per side until cheese melts and edges become crisp and golden.
06 -
Serve immediately garnished with chopped fresh parsley and freshly ground black pepper if desired.