Udis Classic Hot Dog Buns, Gluten-Free. Gourmet flavor or gluten free? With Udis you can have both. Udis offers a wide variety of delicious foods, from breads, bagels, and muffins to pizza, frozen meals, cookies, and more.Were making BBQs gluten free and delicious with our Classic Hot Dog Buns! Our soft and savory hot dog buns provide the perfect match for a classic hot dog, Philly cheesesteak or anything else your heart desires.