Whisk the eggs in a bowl with the cream, milk, maple syrup, cinnamon (if using), vanilla and a pinch of salt.

Dip the brioche slices into the egg mixture, turning until well soaked, then arrange in a roughly 25 x 40cm baking dish or roasting tin so the slices are in one layer but overlap slightly. Pour any remaining egg mixture over the top. Tuck a few blueberries and raspberries under each brioche slice, then scatter over the rest. Cover and chill for at least 1 hr until most of the liquid has been absorbed. Will keep chilled overnight for next day’s breakfast.

Heat the oven to 180C/160C fan/gas 4 and uncover the dish. Bake for 30-35 mins until the egg mixture has just set. Leave to stand for 5 mins, then dust with icing sugar. Serve with yogurt or crème fraîche and extra maple syrup.