Aperol Sour

You know what eggs are. In cocktails, eggs are used for their foaming properties, giving the drink a rich and creamy texture. The eggs proteins form a 'net' that traps air and liquid extremely well; for this reason, drinks that contain eggs are shaken. They are also used for egg washing, a type of booze washing. Some cocktails use only the egg white (fizzes) and some use the whole egg or only the yolk (flips). There are common non-egg substitutes out there, check out insta-foam

A syrup made from dissolving granulated sugar (sucrose) in water. Regular simple is made by combining 1:1 sugar:water by mass, rich simple is 2:1 sugar:water by mass although only 1.5 times as sweet as regular. We always use 1:1 syrup unless otherwise noted in the recipe itself.

The most common fruit juice used in cocktails. This citrus juice is about 6% acid; pure citric acid. Lemon juice should be used the day it is squeezed, some like it freshly squeezed and others like it a few hours old.

An Italian aperitif made of bitter orange, gentian, rhubarb and cinchona with other ingredients. Usually 11% ABV.

A gentian-base aromatic bitters similar to Angostura but with a lighter body, sweeter taste and more floral aroma. A common component of the Sazerac.