Almond paste is a pliable paste made from blanched ground almonds, sugar, and glycerine or other liquid. Almond extract is often used to intensify the flavor. It is used in pastries as a flavoring agent and for decorative work. It is less sweet than marzipan. Almond paste is available in most supermarkets in 6 to 8 ounce cans and packages. Once opened, it should be wrapped tightly and refrigerated. Bitter almond paste is used to flavor Amaretti cookies.