"This is a classically styled Spritz with flavours of ripe berries balanced by a pleasant floral bitterness and fresh acidity," says Ashton. "Although a bit of work is required for the cordial, it's worth the effort. The pinot is measured in grams - it needs to be equal in weight to the other ingredients for a consistent result. The cordial would also work well drizzled over freshly cut fruit." Start this recipe two days ahead to make the blueberry pinot cordial.
Note "Although Dolin Bitter de Chambéry is available at good bottle shops and large online retailers, it would be possible to substitute Aperol at the same measure, or slightly less Campari," says Ashton. Caramelised red wine vinegar is available from select delicatessens.