Take a large glass jug, add the Tetley tea bags and hot water, and allow to sit for 15 minutes.
Remove Tetley tea bags, add cold water and ginger, and place in fridge until chilled.
In a tumbler, add a handful of ice cubes, a shot of your liquor of choice (or go without if you'd like a mocktail), add a slice of fresh lemon and top up with the iced tea.
You can also add fresh mint or sliced berries if you'd like but we couldn't find either!
Delicious with both whisky and vodka - gin would also be great!