Gilway Fresh Garden Mint Sauce, 6.5 oz Glass Jars, Case of Six Jars. Gilway Mint Sauce is made with fresh mint and spirit vinegar. To capture the unique taste and color of the mint, the “liquor” base is sent to the herb fields where the mint leaves are chopped and incorporated as they are picked. Traditionally served with lamb, mint sauce is also delicious with salad and fresh vegetables, especially new potatoes and peas. Product of England.