I’ve always imagined my nemesis to look like a mix between Mrs Clooney and Katherine Hepburn (ca. 1942), who could bake like a pro. The reality is somewhat disheartening. My real nemesis, it turns out, are candy-coloured, chocolate-filled meringues: macaroons, as some call them; overhyped faff, according to others (ok, mainly me). When Dana first…