Bitters are concentrated flavorings, used a dash at a time, that add depth and balance to a drink. A small bottle goes a long way.
Cocktail bitters are highly concentrated infusions of bittering agents, such as roots, barks, herbs, spices and citrus peel, in alcohol. They are not meant to be drunk by the glass. They are used in tiny amounts, in the way a cook uses seasoning, to sharpen and balance the other ingredients.
The reason they work is simple. A drink of spirit and sugar can taste flat or cloying. A little bitterness cuts through the sweetness and gives the drink shape. That is why the original old fashioned is built from just spirit, sugar, water and bitters.
Aromatic bitters. The classic style, with spice and bark notes. Angostura is the best-known example and is the bitters named in the IBA specs for the old fashioned and manhattan in the classic cocktails guide.
Orange bitters. Bright, citrusy and slightly bitter. Often used in martinis and other dry, spirit-forward drinks.
Flavored bitters. Made with ingredients such as chocolate, cherry, celery, grapefruit or smoke. They add a distinct accent and can suit a particular spirit or season.
Bitters differ from bitter liqueurs. Campari, used in the negroni, is a drink in its own right and is used in full measures, not drops.
Use dashes, and measure with care. A dash is the amount that comes out when you shake the bottle once, but bottles vary, so shaking over a spoon teaches you how much your bottle delivers. Start with fewer than you think you need. You can add more, but you cannot remove it.
Bitters can be added to the glass or the mixing vessel. In a stirred drink they integrate with the spirit. In a shaken drink they are added with the other ingredients. A few drops floated on a foam topping look good and add aroma.
Because bitters are made with alcohol, they are not entirely alcohol-free. The amount used in a drink is tiny, and many people consider that acceptable. Some people, for health, religious or personal reasons, avoid all alcohol and may prefer to skip them. If you are serving someone who does, say so and check the label.
Alcohol-free bitters exist as an alternative. You can also add bitterness to a zero-proof drink with strong tea, grapefruit peel or other bitter ingredients, as outlined in the mocktail basics guide.
Making bitters at home is possible but involves steeping botanicals in high-proof spirit for an extended time. Because the process involves alcohol and ingredients that vary in strength, buying a reliable bottle is the simplest route for most people. Start with one aromatic and one orange bitters.
These two bottles will cover a surprising number of drinks. Add a flavored bottle once you want to explore. Keep them with your other home bar essentials.
Bitters show up in many classics. The old fashioned depends on them, and the manhattan uses a dash to tie the whiskey and vermouth together. In the IBA specification for each, the bitters named is Angostura. Orange bitters are often added to dry martinis and other drinks, depending on the bartender and the recipe.
Because bitters are so concentrated, they work like salt in cooking. Too little and the drink feels incomplete, and too much overwhelms everything else. Practice with a single drink until you know how it responds.
Try a simple experiment. Make three old fashioneds, one with aromatic bitters, one with orange bitters and one with both. Taste them in turn and write down what you notice. You may find that aromatic bitters add spice and depth, while orange bitters add brightness. Combining them gives complexity. This is how bartenders build their own versions of a drink.
You can also use bitters in sours, in sparkling water with citrus and in drinks with sweet liqueurs, where a little bitterness restores balance.
Look for bottles with a dasher top, which releases the liquid a drop at a time. Buy small bottles first, since a bottle lasts a long time. Keep them upright, tightly closed and out of direct sun. If you notice flavors fading or the liquid changing color significantly, replace the bottle. Keep a note of which bitters you like with which spirits, and build your collection slowly.
No two bartenders use bitters exactly the same way. Some prefer a heavy hand, others barely a whisper. The right amount depends on the spirit, the sweetness and your own palate. If you are unsure, use the amount in a trusted spec first, then adjust over several attempts. Over time you will develop a feel for what a drink needs, the same way a cook learns to season.
Beginners often ask which single bottle to buy first. An aromatic bitters is the safest start because it appears in the most classic recipes, and it keeps well, so a small bottle will last through many experiments before you need a second.
Make an old fashioned without bitters, then with them, and taste the difference side by side. Then try a different type. You will quickly learn what each one does. This kind of side-by-side tasting is a core part of the cocktail classes at The Blackbird.
Yes. Cocktail bitters are made with alcohol, though they are used in drops. Read the label if you need to avoid alcohol entirely.
Most classic recipes call for a dash or a few dashes. Start small and taste.
No. Bitters are used in drops as a flavoring. Campari is a bitter liqueur used in full measures.
They are stable because of their alcohol content, but flavors can fade over time. Store them cool and away from light.
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