Cut day old brioche bread into cubes.

Make the custard sauce by beating eggs, whole milk and eggnog, melted butter, spices white and brown sugar. Whisk until fully incorporated.

Place cubed bread in a large baking dish, bowl, or something you can fold the bread and custard easily.

Then pour the egg mixture over top of the bread, giving it a stir as you go so that all bread is evenly.

Spoon into large baking dish let sit for 20 minutes before baking.

Then bake the mixture in your preheated oven at 375F for 35 minutes.

Remove and plate, top with vanilla ice cream if desired.