Fresh water in kettle; bring to the boil.
Warm the teapot before adding one teaspoon of loose leaf tea per mug plus one for the pot.
Pour on boiling water and leave to mash for however long you want; a cosy could come in handy here.
Pour tea through strainer into mug and add milk.
Repeat as often as necessary.
Milk in cup first for potted tea. Always. And no Hobbit tea either.