Back Bar Bitters 15ml - Flavorah by Flavorah £5.99 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart Enjoy the zesty flavours of Back Bar Bitters by Flavorah. If you like recreating your own cocktail mixes, this flavour concentrate would be a great addition. Back Bar Bitters adds a dry zest to your mix, without being too citrusy. Try it out today!