For over a decade, I have been drinking Yerba Mate which is a traditional drink of the Tupi-Guarani. It's a variety of holy that grows in Paraguay and Brazil.
Due to cold weather back to a standard pick up: Thiele Broken Silber (loose leaf broken East Fresian blend of heavy tangy Assams) with Milk (an Eastfrisian would kill me for that sacrilege), 6g tea, 250ml boiling water, 3 minutes, no sugar.