What’s usually used to thicken buffalo sauce is some kind of starch (often cornstarch or arrowroot powder) that is being mixed with cold water and then heated on the stove. If you’re not set on an authentic buffalo sauce recipe, simply use some whole nuts or seeds to replace both the butter and starch but still end up with a thicker consistency. In our recipe, we use whole dates which are nicely sticky and fibrous, adding even more thickness.