Make Ahead: You can prepare the custard and bread mixture up to one day ahead and refrigerate until ready to bake.
Serving Suggestion: Serve warm with a drizzle of rum sauce, whipped cream, or a scoop of vanilla ice cream.
Tip: Brioche works beautifully, but challah or croissants also yield a rich texture.
Keyword bread pudding, brioche bread pudding, custard pudding, holiday dessert, rum raisin dessert