Codorníu, Waitrose Blueprint Brut Cava, Penedès, Spain

Given the distinctive character and quality of their best wines, it’s not surprising that leading Cava producers get annoyed when their output is blithely dismissed as cheap and cheerful. Yet Cava remains, by far, the best traditional-method bet below £10. Made by big-hitter Codorníu, this is remarkable value, with green apple, stylish mousse, racy citrus acidity and hints of herb and toast.