Rachael Ray Cucina Stoneware 12-Ounce Oval Au Gratin, Mushroom Brown This 12-ounce au gratin is crafted from sturdy, solid stoneware and glazed with warm, earthy color The small stoneware oval baker combines relaxed rustic character and modern functionality and convenience Flared sides on the au gratin cleverly incorporate comfortable freeform handles Oven safe to 500 degrees Fahrenheit, the baking dish is also microwave, freezer and dishwasher safe for convenience Cucina dinnerware and partners with other baking dishes and serve ware in Cucina collections