Why is a Garibaldi's orange juice fluffy? The spec and a fluffy-juice builder

A Garibaldi is two ingredients: Campari and orange juice, over ice. It is also the drink that taught bartenders to care about how they treat the juice. Pour the same juice flat and you get a bitter orange drink. Blitz it first and you get a pale, airy cloud that sits on the red Campari, softens the bitterness and looks like nothing else on the menu. The recipe did not change. The texture did.

The spec

Method: squeeze the orange and strain out the pulp. Blend the juice on high for about 10 seconds without ice until it is pale and foamy, or use the bar trick below. Pour the Campari into a small highball over a couple of ice cubes, add more ice, then top with the fluffy juice. Glass: small highball. Garnish: an orange wedge on the rim. Serve at once, because the foam does not wait around.

Where it comes from

The Garibaldi is an Italian aperitivo named after Giuseppe Garibaldi, the nineteenth-century general of Italian unification. The usual story is that the drink is a map: Campari from Milan stands for the north and the red shirts of Garibaldi's volunteers, and Sicilian oranges stand for the south. It became popular around 1960, and the IBA list has included it on and off since 1986. Its second life began when Naren Young put it on the menu for the 2015 relaunch of Dante in New York, where it became a signature serve. Dante's fluffy-juice version made the style famous. Stories about who first foamed the juice vary, so treat any single name with caution.

Why the juice matters

Campari is bitter, sweet and about 25% alcohol. Orange juice is sweet, sour and watery. In a plain build the two simply mix, and the first sip is mostly juice and the last is mostly bitter, because the denser Campari tends to sink. Whipping the juice changes three things.

• Air. Fine bubbles, held in place by the juice's pectin and tiny bits of pulp, make a lighter, creamier layer. It feels softer on the tongue, the same way foam on a coffee does.
• Layers. The foam floats on the Campari, so you get the bitter first at the bottom of each sip and a gentle cloud on top, rather than a muddle.
• Freshness. Dante's version juices to order with a high-speed juicer. The bubbles are only temporary, which is why this is a drink you make last, then serve straight away.

Same Campari, same juice, different texture.

At home the usual trick is to squeeze the juice by hand, then run it in a blender for a few seconds, sometimes with one or two ice cubes, until it turns pale and lofty. A hand blender in a tall jug can work too, though the result is usually less thick.

Build your Garibaldi

Variations, low and no

• Alcohol-free Garibaldi. Swap the Campari for an alcohol-free red bitter aperitif in the same 45 ml, top with the same fluffy juice and add a splash of soda if it is too sweet. Check the label, because some are 0.5% rather than 0.0%.
• Half-and-half. Use 25 ml of Campari with 25 ml of an alcohol-free bitter. You keep the flavour and cut the alcohol roughly in half.
• Americano-style. Replace half the juice with soda for a lighter, longer drink.
• Spritz it. Top with a splash of dry sparkling wine, but add it last so it does not knock the foam down.

As with any drink, go slowly: this one is easy to drink and about as strong as a small glass of wine.

What to look for

You do not need a bar-grade juicer to get the cloud. What matters at any budget is how well the blender can whip a small amount of juice, and how easy it is to clean.

• Power and blade speed. Fast blades whip in air quickly. Around 1200 W and up is common for the models people use for this.
• A jug that suits small batches. A tall, narrow jug works better than a wide one with 120 ml in it. Many jugs are made for litres, so check the minimum fill.
• Speed control or a pulse button. Fine control lets you stop when the juice turns pale, before it warms up and flattens.
• Easy cleaning. You will rinse it for every drink, so a glass or tough jug that goes in the dishwasher is worth it.