After my recent adventure with a bundle of beautiful, exotic, mystery lemons, I’ve fallen prey to another rare and ravishing winter citrus fruit: the bergamot. Famous for imbuing Earl Grey with that unmistakeable, love-it-or-hate-it musky, floral aroma, bergamots seem to be tragically underused outside the teapot. Cut one in half and you may see why: they are peppered with pips, and their flesh is tougher and less yielding than that of a lemon or orange. I like to think that this is because bergamots have suffered less from the rampant perfectionist cultivating impulse that has so plagued modern fruit and vegetable production; rather like quinces, these are a niche, knobbly little fruit for which demand is low. As a result, there’s no need to train them into perfect orbs of glowing colour or buff their skins with wax to a lustrous sheen. Instead they are squat, milky yellow, often slightly blemished, and heavy in the hand. A delightful rarity, I couldn't help buying them in bulk when I spotted them in Waitrose a couple of weeks ago.