In a medium, flat-bottomed bowl, whisk together the eggs, milk, cinnamon, vanilla and salt.

Heat a griddle over medium heat and grease with a bit of butter. Quickly, before the butter starts to burn, dip a slice of bread into the egg mixture, making sure both sides are coated and place it in the butter on the griddle. Fry for about 2 minutes, or until it is browned, flip and fry the other side.

Serve warm with butter and powdered sugar, maple syrup or jam as desired.