Impeccable oaken bourbon-barreled strong ale (a.k.a. Abacus) is a decadent British-styled barleywine. Chewy caramel nuttiness, rum-soaked crème brulee creaminess and syrupy maple molasses deepen bourbon whiskey theme. On second passing, rich raisin-pureed plum, prune and black cherry tartness seeps into surging chocolate-y toffee sweetness as ancillary burgundy, port and sherry ease into calm alcohol-burnt backdrop. Toasted coconut, vanilla extract, marshmallow and almond illusions further sweeten slow sipping heavy dessert treat.