Amaretto
Amaretto is an Italian liqueur with a characteristic almond flavor. The name means "a little bitter" in Italian, referring to the bitterness of almonds.
The most famous brand is Disaronno, which was first made in Milan in 1525. The original recipe was likely an infusion of apricot pits or almonds in grape brandy, with some added spices. Modern amaretto is made from a base of brandy or vodka infused with almond flavor from apricot kernels, peach pits, or almonds.
Disaronno's formula remains a secret, but is speculated to contain vanilla, cinnamon, and other spices along with almond. The amber color comes from burnt sugar caramel added to the infusion. Amaretto has a sweet, thick, and syrupy texture. The almond flavor is pronounced but balanced by some bitterness.
Amaretto is popular in cocktails, especially Amaretto sours. It mixes well with dark liquors like whiskey, adding almond and sweetness. It can be used in baking to add a note of almond extract. In Italy, it is often served as an after dinner digestif either neat or on the rocks.
The global popularity of amaretto grew significantly after World War II. Disaronno is the market leader, but there are other brands and some artisanal amari with similar almond profiles. Overall, amaretto offers a smooth, nutty, bittersweet taste profile that enhances many drinks and desserts.