Smart Cookie Barkery Muttstletoe seasonal holiday dog treats are made with seasonally inspired ingredients like turkey, pumpkin and cranberries. The treats have a crunchy texture and are formulated with limited ingredients, which is great for dogs with sensitive stomachs. As with all of Smart Cookie’s products, these treats are made from scratch in their Golden, Colorado, facility and are grain-free, wheat-free, corn-free, soy-free and junk-free.