Beat together eggs, milk and vanilla until combined. Place bread on cookie sheet and pour egg mixture overtop slices. Flip bread after one minute, and then let sit until egg mixture is fully absorbed and bread is saturated (about 3 minutes).
In a lightly greased skillet over medium-high heat, fry bread slices until cooked through and lightly browned. Cool on a wire rack.
Place cooked French Toast on a cookie sheet and freeze for 10 minutes. Remove from freezer and individually wrap each slice in plastic wrap. Freeze until needed.
To serve, unwrap frozen French Toast and cook in toaster until heated through. Cut into sticks and serve with syrup.