Arrowroot biscuits are a type of light, crispy, and slightly sweet cookie that are often used in baking and as a gluten-free alternative to traditional flour-based biscuits. They are made with arrowroot flour, a starchy substance that is derived from the root of the arrowroot plant. Arrowroot biscuits can be enjoyed on their own as a snack or used as a base for cheesecakes, pie crusts, and other desserts. They are also a popular ingredient in gluten-free baking due to their texture and neutral taste.