Hi Cristen,
You had a great idea here for a fun thread. What follows is lengthy. We were in London this past summer and self-catered in a rental just off Brick Lane. As such, we were blessed to be nearby the invaluable Taj store. I'll def be posting a TR/Foto Essay at some point. In the meantime below are some delicious memories, some of which are hardly secrets (sorry no scones nor cheddar).
Blackbird bakery (Herne Hill market) was our fave pastry: 'Joel's famous Lamington.' Do donuts count? If so, see Bread Ahead's various cream-filled donuts. Another worthy dessert: Hackney brand mince pie gelato. See also Box Park's 'Acai Berry' stall. Its acai ice is what many Brazilians eat for breakfast.
Spanish Caravan was the name of one of our fave Brick Lane food market stalls. Its lady operator made delicious pisto-style tapas and lots more. Every dish that we bought from her was as good as or better, than any of the exact same dishes that we've ever eaten in Spain.
Sud Italia includes a rare 'zucca' or pumpkin offering on their menu.
Some killer drinks come to mind. Here are four: a) City Juice sugar cane drinks esp. with ginger and strawb; b) Aunty Audreys Sorrel creates the freshest red sorrel drinks (both @ Truman weekend market) c) Spitalfields City Farm makes a powerful elderflower cordial; upon hearing the POP of us opening our fizzy bottles, a child at a school recess right next door screamed, "WHATTHEHELLWAZTHAT?!" Through the fence and unseen, I had to reassure him that it had not been gunshot. d) The 'Chai Guys' at Spitalfields market made a Kaduk chai so good that we bought some to take home.
Cristen, you asked about tea. Hands-down our fave place for that was the Zetter Townhouse. The food and drink were A+ excellent but that quirky decor and superb service also play an important role. Dishooms and La Cage Imaginaire in Hampstead plus also Cafe Laville (Little Venice) all belong in that same restaurant category of 'fantastic food, service and setting'.
We loved Ye Olde Mitre pub's inexpensive 'Cardinal's Choice' sarnies. Cor Blimey, the full English breakfast at Maria's Cafe in Burra was perfect. Its best part? Dunno, maybe the bacon (see also Dishoom's breakfast bacon naan roll).
We also shopped at Tescos, Waitrose and M&S.
I am done. The end.