ISO: Vanilla Latte

Hi, I know that my little Krups espresso maker machine won't make Vanilla Latte's how Starbucks makes but I would like to know the recipe anyways. This way I can make a latte maybe half as good as they do and can stop spending $3.35 ALL the time :) Can you also include some kind of step by step as to how to make them, I am clueless about this and absolutely LOVE them. Being 6 months pregnant and having my husband deployed again to IRAQ, it would be awesome if I could make a DECAF latte when I crave it without having to drive to Starbucks. Thank you so much, Vanessa