Over the last few years, rosé has enjoyed a transformation from a summer staple to a year-round vino. Driven in part by celebrity brands (think Brad Pitt’s Miravel or Kylie Minogue Wines), the Provençal giant Whispering Angel has been cited as boosting the worldwide rosé market. The wine has a loyal legion of sippers, thanks to attractive marketing, subtle flavouring and A-lister approval – Adele told US Vogue: “Whispering Angel turned me into a barking dog. It did not make me whisper.” A blend of cinsault, grenache and vermentino grapes, the wine is loved for being very pale and very dry, with subtle flavours of orange , red fruits and a little dried herbs and spice. But with a price tag of £25, it’s little surprise supermarkets have rushed to offer more affordable alternatives.…