What type of brandy is usually included in recipes for lobster bisque?

The most common brandy used in lobster bisque recipes is cognac.

Cognac is a type of brandy made from specific grapes grown in the Cognac region of France. Its smooth, complex flavor adds a touch of richness and depth to the bisque, complementing the sweet and savory flavors of the lobster.

While cognac is the most popular choice, other brandies, such as Armagnac or even American brandy, can also be used. Ultimately, the best brandy for your lobster bisque will depend on your personal preference and the other flavors in the dish.