By Libby Brodie Spring is a time of new beginnings and new life. Lambs gambol, chicks cheep and certain wine houses are offering up their latest babies for consumption, too. Recently there have been some exciting new releases: lovers of high-end sparkling wine and champagne, please take note. Champagne Bollinger La Grande Année 2015£175, Berry Bros & Rudd Bollinger is unique among Champagne houses for its use of wood. It is the only champagne to ferment all its wines in oak, retaining its own cooper, or barrel maker, specifically for its wines. This fact I learned last week in Paris, where I e…