Step 1: In a shallow dish or pie plate, whisk together the eggs, milk, granulated sugar (if using), vanilla extract, cinnamon, and salt until well combined and slightly frothy. Ensure there are no streaks of egg white remaining.
Step 2: Heat a large griddle or non-stick skillet over medium heat. Add 1 tablespoon of butter and let it melt and coat the pan.
Step 3: Dip each slice of bread into the egg mixture, ensuring both sides are fully coated. Let each side soak for about 15-30 seconds, depending on the bread's thickness and density, until saturated but not mushy.
Step 4: Carefully place the soaked bread slices onto the hot griddle or skillet, ensuring not to overcrowd the pan. Cook for 2-4 minutes per side, or until golden brown and cooked through.
Step 5: Remove the cooked French Toast from the griddle and place it on a serving plate. Repeat with the remaining bread, adding more butter to the pan as needed.
Step 6: Serve immediately with your favorite toppings such as warm maple syrup, fresh berries, and a dusting of powdered sugar.