a strong, bitter alcoholic drink made from spices and plant products that is mixed with other alcoholic drinks

Why not use different bitters to spice up classic drinks?

The recipe combines rum, peach brandy, lemon juice, and ginger bitters.

To finish, add a dash of bitters.

You need three key ingredients - lime juice, simple syrup, and a nice selection of bitters.

Add the aromatic bitters to the glass before pouring the cocktail into it.

See also: bitter noun