Cockburn's, Fine White Port, Douro Valley, Portugal NV

This has crept up in price but still offers fantastic value for money, and is a must-buy at Tesco, especially in the summer months. Love the contemporary packaging too. White Port and tonic with a sprig of mint is a delicious and refreshing summer aperitif – this one is 19% alcohol, so it's a lower-alcohol (and sweeter) alternative to a G&T. Or just enjoy a glass of white Port without mixer, served at white wine temperature. Maybe a dish of salted almonds at the side – or a pastel de nata. This one is bursting with spicy, white currant and fruit salad exuberance, rich and grapey. Once opened, it will last in the fridge for a few weeks.