Ingredients 2 large whole eggs 3 egg yolks 3/4 cup sugar 1/2 cup hot cocoa mix 3 cups half-and-half 1 cup dairy 2 ounces espresso, slightly cooled 1 tablespoon vanilla flavoring two tablespoons unsalted butter, melted and divided 18 ounces stale challah bread, reduce 1-inch cubes 6 ounces