I love tea lattes! They're a great consolation prize for days I'm avoiding coffee. Plus...they're just plain wonderful! Here's how I make my London Fogs.
Bring water to nearly-boiling, and pour about a half-cup over a black tea bag (I like to use Earl Grey, Lady Grey, or English Breakfast) and steep for several minutes. I just let it steep while I heat up my espresso machine to steam the milk. For a dairy-free version, use almond milk. I put a bit of Stevia in mine and keep it in the freezer for a few minutes to help the frothing process.
Steam your milk and pour it over the tea until the mug is full, and enjoy!