The Widow's Kiss is a cocktail with complex flavors that blend together harmoniously. The apple brandy brings a subtle fruitiness, while the yellow Chartreuse and Bénédictine provide herbal and honeyed notes, respectively. The Angostura bitters add a hint of spice to round out the drink. Yellow Chartreuse and Bénédictine are both herbal liqueurs with distinct flavors. They contribute to the unique character of the Widow's Kiss. However, if you prefer a slightly different profile, you can experiment with different proportions of the liqueurs or substitute them with similar alternatives. The Widow's Kiss is a cocktail that appeals to those who appreciate nuanced flavors and enjoy exploring the world of herbal liqueurs. It's a delightful choice for those looking for a sophisticated and complex drink.