Serves 3–4 INGREDIENTS 300–400g frozen ripe berries, either alone or in combination (raspberries, blackberries, blueberries and strawberries are all good) 125g natural wholemilk yoghurt or thick Greek-style yoghurt 2–3 tablespoons clear honey, depending on the sweetness of the berries 1 tablespoon lemon or lime juice METHOD 1 Put all the ingredients into a food processor and whiz until very smooth. 2 Eat immediately…