In fact it was at the Headhouse Farmers’ Market that I ran into the promotional table for it.
It is Root, an 80-proof liqueur based on Root Tea. From the promotional card:
Root Tea goes back to the 1700’s, when settlers picked it up from Native Americans. Over generations, Root Tea grew in potency, particularly in Pennsylvania, where the ingredients grow in abundance. During the Temperance Movement at the close of the 19th century, a Philadelphia pharmacist removed the alcohol and rechristened it (ironically) Root Beer for hard-drinking coal miners and steelworkers.
I didn’t realize previously that Root Beer had its roots in Philadelphia, so to speak. Charles Hires, that pharmacist, first sold commercial root beer to the public in 1876 at the Philadelphia Centennial Exhibition.
Should be available in PA State stores this summer. Interested to try it!