What base do both Amaretto and Hazelnut liqueurs typically use?

Amaretto and Hazelnut liqueurs are both characterized by their use of nuts as a primary flavoring ingredient. Amaretto is traditionally made using almonds or apricot pits, which impart a nutty flavor profile in the liqueur. Similarly, Hazelnut liqueurs such as Frangelico are crafted from hazelnuts, showcasing their distinct nutty essence. This commonality in their base ingredients is what solidifies the connection between these two types of liqueurs.

In contrast, fruits, herbs, and roots do not play a fundamental role in the traditional bases of these liqueurs. Fruits could be used in other varieties of liqueurs, but they aren’t signature to Amaretto or Hazelnut liqueurs. Herbs may flavor certain liqueurs, providing freshness or complexity, but they are not the star ingredient in either of these. Roots are featured in different kinds of spirits and liqueurs, notably in bitters or certain herbal liqueurs, but again, they are not relevant to Amaretto or Hazelnut liqueurs. Thus, nuts clearly stand out as the shared component in the base of both liqueurs.