Vegetable soup is a staple of Irish home kitchens and pubs. At the Derg Inn, an acclaimed pub in the historic village of Terryglass, in County Tipperary, the chef uses as much Tipperary-grown produce as possible. Even the butter is produced by a local cooperative in nearby Nenagh. From 'The Irish Pub Cookbook' by Margaret M. Johnson I found the Kerrygold Irish butter at Costco. Here is their Recipe #476612 recipe.