Ingredients
6 cups Brioche, challah, or egg bread, cut into 3/4 inch cubes
1 cup red California seedless grapes
3 eggs, large
1 egg yolk
1 teaspoon vanilla extract
6 tablespoons packed light brown sugar
3 cups heavy cream
Brown Sugar Whipped Cream (optional):
1 tablespoon packed light brown sugar
1 cup heavy cream
1 teaspoon vanilla extract