Bulleit Frontier Whiskey is a straight Kentucky bourbon produced at the Four Roses Distillery in Lawrenceburg. With a recipe that dates back to the early 19th century, the brand was reborn in the 1980s and has since become popular with enthusiasts and bartenders. It’s spent at least six years in white American oak barrels, and has a high rye content, leading to a sweet and spicy whiskey with toasted nuts and soft fruity undertones.