Our slider-sized burger patties are our longest lasting dog treat. Slow-cooked and made with Midwest grass-fed beef and gluten-free rice flour. These longer lasting patty treats are an excellent way to reward the dog that loves to chew.2-inch Beef Burgers Bakers Dozen (13 count) and our slider-sized burger patties are our longest lasting treat, slow-cooked and made with Midwest beef. Slow smoked for an excellent taste dogs love and no corn, wheat, soy or anything artificial and hand packaged & quality assured. Ingredients contain like beef, rice flour, sodium lactate, salt, dried cultured skim milk, garlic, silicon dioxide, citric acid, mixed tocopherols (a preservative), vegetable oil and rosemary extract. From its original one-of-a-kind deli style beef burgers for dogs, Happy Howie’s has expanded to include burger patties and other treats.