Slice the brioche bread into fingers. Whisk together the eggs, milk and vanilla extract.
4 slices brioche bread, 2 large eggs, 60 ml (1/4 cup) milk, ¼ tsp vanilla extract
On a separate plate, mix together the sugar and cinnamon.
100 g (1/2 cup) granulated sugar, 2 tsp ground cinnamon
Heat the butter in a large frying pan. Briefly dip the bread sticks in the egg mixture, turning to coat and place in the frying pan. Fry on all sides until golden brown, then immediately transfer to the cinnamon sugar. Roll the fried bread sticks in the cinnamon sugar.