Prep the batter. Measure flour into a bowl. Add the milk slowly while whisking. Whisk in the salt, eggs, cinnamon, vanilla extract and sugar until the batter is smooth.
Take a slice of bread and dunk it into the batter. Allow it to soak for four to five minutes. Coat the batter evenly on both sides.
Transfer the battered bread slice to a greased griddle or frying pan over medium heat. Cook on both sides until golden brown, about three minutes.
Transfer the cooked French toast to a serving plate. Repeat with all slices of bread. Serve with berries and maple syrup if desired and enjoy!