Preheat your oven to 425°F and grease a sheet pan.
In a mixing bowl, whisk together milk, eggs, melted butter, vanilla extract, brown sugar, and cinnamon.
Dip each slice of brioche bread into the mixture, ensuring both sides are well-coated.
Arrange the soaked slices on the sheet pan.
Bake for 7 minutes on each side or until each piece is golden brown.
Serve the French toast warm with your chosen toppings such as syrup, fresh fruit, powdered sugar, or extra butter. Enjoy this delicious, efficient way to make French toast, perfect for sharing a delightful breakfast or brunch experience with family and friends!