In Ireland we have fulachta fiadh, (purposely excavated troughs in watery areas which is heated with stones from a nearby fire). They range in date from the Neolithic to the Med, but most are Bronze Age in date. Later sources state that they are associated with cooking deer and have also recorded a tradition of using the fat as some kind of moisturiser. However, all are different and some researchers are looking into whether some of the features were used to create fat for storage or for candles and soap, by boiling bones. This is similar to a process used in the Near East with gazelle bones and by the Blackfoot tribe in Canada who used similar features to create fat and then mix it with dried buffalo and berries to create a high-fat winter snack.