Steam or simmer the tempeh for 10 minutes first (this removes bitterness and improves texture).
Cool slightly, then finely dice or crumble.
Mix all marinade ingredients. Toss tempeh thoroughly and leave for at least 20 minutes (an hour is ideal).
Fry in a hot pan with a little olive oil until deeply golden, crispy at the edges, slightly sticky. It should smell like a tapas bar.