B&B stands for Brandy and Benedictine; it's that simple. It is one of the icons of fine drinking and is truly a classic cocktail.
A B&B is often served on the rocks. Some drinkers prefer it straight up and others prefer it slightly warmer (prep your snifter with warm water, dumping it before adding the spirits). It is almost always served in a brandy snifter and it makes an ideal after-dinner drink or nightcap.
The producers of Benedictine also make a pre-mixed B&B which is really good. However, if you have a favorite brandy, you will find a made-from-scratch B&B a better option.
Gather the ingredients.
Pour the liquors into a brandy snifter.
Add ice if you like.
You can also use the back of a bar spoon to gently float the brandy on top of the liqueur.
How Strong Is the B&B?
Enjoying a B&B is more about the experience than how much alcohol you're taking in. It's meant to be enjoyed slowly (maybe with a fine cigar) and savored for its exquisite taste.
Inquiring minds want to know, though, so let's do a little comparison of the B&B's alcohol content. If we use an 80-proof brandy (Benedictine's the same strength), here's how this drink weighs in:
B&B straight: 40% ABV (80 proof) - Full bottling strength because there is no ice
B&B on the rocks: 32% ABV (64 proof) - A little ice makes a bit of difference