Begin by gathering all necessary ingredients to prepare the French toast.
In a large mixing bowl, add the flour and gradually whisk in the milk. Once the mixture is smooth, incorporate the eggs, sugar, vanilla extract, cinnamon, and salt, whisking until fully combined.
Heat a lightly oiled griddle or frying pan over medium heat. While it warms, soak the bread slices in the milk mixture until they are thoroughly saturated.
Cook the soaked bread slices in batches on the preheated griddle or pan, turning them until both sides are golden brown and crisp.
Serve immediately and enjoy the perfect fluffy French toast.