Whisk eggs, milk, sugar, vanilla, cinnamon, and salt in a shallow bowl or pie dish.

Heat a large skillet or griddle over medium; add 1 tablespoon butter.

Soak each bread slice about 10 seconds per side in eggs to coat without becoming soggy.

Cook on hot griddle 2-3 minutes per side until golden brown with slightly crispy edges.

Add butter as needed for remaining slices.

Serve immediately with maple syrup, powdered sugar, and optional fresh berries.