In a mixing bowl, whisk together the flour, milk, eggs, melted butter, sugar, and salt until smooth.
Heat a lightly oiled griddle or frying pan over medium-high heat.
Pour or scoop the batter onto the griddle, using approximately 1/4 cup for each crêpe. Tilt the pan with a circular motion so that the batter coats the surface evenly.
Cook the crêpe for about 2 minutes, until the bottom is light brown. Loosen with a spatula, turn, and cook the other side.
Serve hot with your favorite toppings and fillings.