In a medium-sized mixing bowl, whisk together the flour, milk, egg, and salt until smooth.

Heat a large frying pan or wok over medium-high heat. Once the pan is hot, add a teaspoon of butter and swirl it around to coat the surface of the pan.

Pour a quarter cup of the batter into the pan and quickly tilt the pan with a circular motion to spread the batter evenly across the surface in a thin layer.

Cook the crepe for about 2 minutes, or until the underside begins to brown. Use a spatula to lift up an edge of the crepe and check for doneness. Once browned, carefully flip the crepe and cook the other side for about 2 minutes, or until browned.

Repeat steps 3 and 4 with the remaining batter to cook the rest of the crepes.

Serve the crepes hot, and enjoy your delicious breakfast! You can fill them with your favorite toppings such as fruit, jam, Nutella, or whipped cream.