21 Grams Clapham

You'll find yourself queuing out onto the pavement most weekend mornings at 21 Grams, and honestly, it's worth the wait. The vibe is properly buzzy without feeling try-hard — locals perched on mismatched stools nursing flat whites, mates lingering over eggs on toast, that kind of thing. The coffee's genuinely excellent (they clearly know what they're doing), and the brunch menu doesn't overcomplicate things, which is refreshing given how every café in SW4 seems to be chasing the next viral avocado situation.