01 -
In a large bowl, whisk together flour and salt. Create a well in the center and add eggs, whisking gently to incorporate the flour. Gradually pour in milk while constantly whisking to prevent lumps. Add melted butter and mix until the batter is smooth. Allow batter to rest for 30 minutes at room temperature for tender, pliable crêpes.
02 -
Heat a non-stick skillet over medium heat for 2-3 minutes. Lightly brush with melted butter. Pour approximately 60ml of batter into the center of the hot pan, immediately swirling to create a thin, even layer. Cook for 1-2 minutes until edges turn golden and begin to lift. Carefully flip and cook for another 30 seconds. Stack cooked crêpes on a plate and cover lightly to maintain warmth.
03 -
Lay one crêpe flat on your work surface. Spread a thin layer of Dijon mustard in the center. Top with a slice of ham and a generous amount of shredded Gruyère. Fold the crêpe in half, then fold again to form a triangle, enclosing the filling inside.
04 -
Return filled crêpe to the skillet over medium heat. Press gently with a spatula and cook for 1-2 minutes per side until cheese melts completely and exterior becomes slightly crisp. Serve immediately, garnished with chopped parsley and freshly cracked black pepper if desired.