Crème de Cassis: Crème de cassis (also known as Cassis liqueur) is a sweet, dark red liqueur made from blackcurrants. Several cocktails are made with crème de cassis, including the very popular wine cocktail, kir. It may also be served as an after-dinner liqueur or as a frappé.
Simple syrup: Simple syrup (aka sugar syrup, or bar syrup) is a basic sugar-and-water syrup used by bartenders as a sweetener to make cocktails. Simple syrup is made by stirring granulated sugar into hot water in a saucepan until the sugar is dissolved and then cooling the solution. The ratio of sugar to water is 1:1 by volume for normal simple syrup, but can get up to 2:1 for rich simple syrup. For pure sucrose the saturation limit is about 5:1 (500 grams (18 oz) sucrose to 100 millilitres (3.5 imp fl oz; 3.4 US fl oz) water).
