The 10 Best Black Teas of 2022 - The Spruce Eats The cozy combo is best with black tea, especially ones as bold, malty, and slightly bitter as Taylor of Harrogate's Assam Tea. Named after the region in India where it's grown, Assam is a potent and extra-caffeinated tea used in popular blends like English breakfast and Earl Grey. This one is so strong the brand actually recommends serving ...