To mark International Pinotage Day on Saturday 11 October and celebrate 100 years of Pinotage this year, Leopard's Leap are sharing a recipe to a special treat: the Cape Sour Wine Cocktail.     Cape Sour Wine Cocktail   Ingredients          Citrus simple syrup          Juice of 3 oranges, freshly squeezed Juice of 1 lemon, freshly squeezed 250 ml castor sugar   …