In a bowl, mix together the egg, sugar, cinnamon, and milk.
Dip each slice of brioche in the egg mixture, letting them soak for a bit before placing them on a plate.
Heat a bit of butter or oil in a non-stick pan over medium heat.
Fry the brioche slices, a few at a time, for a couple of minutes on each side or until golden brown.
Arrange the French toast on a plate, scoop Carte D'Or Madagascan Vanilla ice cream on top, and serve with your choice of toppings - we love strawberries, raspberries, blueberries and honey.