Sullivans Cove American Oak Second Fill is a single malt whisky produced in Tasmania, Australia. It is matured in American oak barrels that have been previously used to age bourbon and then refilled with Tasmanian whisky for a second time. This process gives the whisky a subtle, yet complex flavor profile with notes of vanilla, honey, and caramel. The whisky is bottled at 47.5% ABV and is highly regarded for its smoothness and balance.