Mint
It is probably not necessary to indroduce this herb. It has its typical flavour. It is used in majority of cuisines worldwide for tea, cold alcoholic and non alcoholic drinks, salads, main dishes, chewing gums or other mouth refreshers.
You can use it fresh, frozen or dried. It cools you down when drinking/eating in hot days. For instance in Morocco it is used in tea in hot days. While they use different kind of herbs for the cool ones.
Recipes with mint.
To buy mint seeds US, UK, Europe