The One Drink and the No-Drink
Curtain Call: Rhubarb, Lemongrass, and Salted Meringue Fizz
Foam has a clock on it, which makes this a drink you hand over rather than one you carry out on a tray. Reverse the dry shake and the cap holds long enough to get to the table.
Serve alongside
Shortbread, or salted cashews. Rhubarb is aggressively tart and the meringue foam is only texture — something buttery and plain underneath gives all that acid somewhere to land.
Tools
Saucepan. A two-piece shaker if you have one, since the reverse shake means straining and re-shaking and a cobbler tin makes that clumsy — two jars and a lid will also do it. Fine sieve. Something heavy to bruise the lemongrass: the flat of a knife, a rolling pin, the bottom of the saucepan.
Ingredients · swaps in parentheses
Rhubarb, sugar, lemongrass, lemon, aquafaba, fine salt, soda water, flaky salt, a rhubarb ribbon or lemon twist.
Magic
Reverse the order. Shake with ice first, strain the ice out, then shake the cold liquid again on its own for fifteen seconds. Everyone dry-shakes first because that is what the books say, but whipping a cold liquid produces a tighter, denser, longer-lived cap than whipping a warm one — the same reason cream whips better out of the refrigerator. The difference is roughly two minutes of standing time, which is exactly the two minutes you need. Not feeling brave? Dry shake first as written; it works, it just does not last as long.
Gotcha
Two or three grains of flaky salt. Actual grains, counted. This is the last thing you do to a drink that is otherwise finished, and a normal pinch — the pinch you would use on a tomato — lands on a foam that carries it straight into the first sip and turns the whole thing into a seasoning exercise. There is no recovering the glass. Tip a few grains into your palm and place them.
Foam has a clock on it. That single fact decides how this drink gets served, and it is worth deciding before you start rather than while four glasses are going flat on a tray.
A well-made aquafaba cap is at its best for about ninety seconds and perfectly good for three or four minutes. After that it thins, then it retreats to a ring around the edge, and the drink underneath is still fine but the thing you made is gone. So this is a hand-it-over drink. You stand at the counter, you shake, you pour, you pass it to whoever is nearest, and you do it again. It is not a pitcher.
What you get for that is genuinely worth the standing: a vivid pink fizz under a pale cap with three grains of salt on it, tart and green and finished. Strong color, deliberate contrast, and knowing when the scene is over — the Room for Drama way to close a set.
Rhubarb syrup
Simmer 1 cup chopped rhubarb with 3/4 cup water and 1/2 cup sugar for 10 minutes. Cool and strain without pressing. One week refrigerated.
Pressing pushes pulp through and dulls the color, and color is most of what rhubarb is contributing here. Let it drip. The spent fruit is worth keeping for yogurt even though it has given up its best.
Field rhubarb is greener and more sour than the forced pink stalks, and it makes a syrup that tastes better and looks worse. If you are working with green rhubarb and want the color, a single strip of hibiscus in the pan fixes it without adding flavor anyone will notice.
Lemongrass tea
Bruise one lemongrass stalk and steep in 1 cup just-boiled water for 8 minutes. Strain and chill.
Bruise it properly — whack it along its length until it splits and smells like a lime that went to the tropics. An unbruised stalk sits in hot water for eight minutes and gives up almost nothing. Use the pale lower third and save the woody top for stock.
Build
Makes: 1 drink. Time: 12 minutes, plus syrup cooling. Glass: small highball.
- 1 1/2 ounces rhubarb syrup
- 1 ounce chilled lemongrass tea
- 3/4 ounce fresh lemon juice
- 3/4 ounce aquafaba
- 1 tiny pinch fine salt
- 2 ounces chilled soda water
- 2 or 3 grains flaky salt, for the foam
- 1 thin rhubarb ribbon or lemon twist
Shake the syrup, tea, lemon, aquafaba and fine salt without ice for 15 seconds, or use the reverse order above.
Shake again with ice until cold.
Strain fine into the glass.
Top slowly with soda — down the side, against the glass, never into the center of the cap.
Finish with two or three grains of flaky salt.
Why the salt sits on top and not in the drink
Salt stirred into the liquid seasons every sip equally, which is what the tiny pinch of fine salt in the shaker is for. Salt on the foam does something else: it touches only the first sip, at full strength, and for that one moment the rhubarb and the lemon both jump. Then it is gone and the drink proceeds normally. It is a small, cheap piece of theater that happens entirely on the tongue.
Glass and ice
Small highball, no ice in the glass. Ice would displace liquid you do not have to spare in a five-and-a-half ounce drink, and a cube bobbing under a foam cap pushes it around until it tears. The glass goes in the freezer instead. Straight-sided rather than tapered, so the foam sits as an even layer rather than a dome.
Four servings
Combine syrup, tea, lemon and fine salt for four drinks and refrigerate four hours. Add aquafaba and shake each serving individually. Soda and flaky salt belong at service.
Here is the honest arithmetic for a party. Each drink is about a minute of shaking, straining, topping and salting. Six people is six minutes at the counter with your back to the room. That is fine if it is six people. It stops being fine somewhere around twelve, and at that point make the still version instead — no aquafaba, no soda, poured over a large cube from a pitcher. The salt goes in the batch. You lose the cap and you keep the drink.
I would rather serve eight people a good still rhubarb drink than serve fourteen people a foam that died on the way to the porch.
With alcohol
Gin, an ounce, and it is close to perfect — juniper and rhubarb and lemongrass all sit in the same green register. Vodka is the neutral option and adds nothing but strength. Sake, at an ounce and a half, is the interesting one and makes the whole drink softer.
The zero-proof version loses nothing structurally. Aquafaba gives the body a spirit would otherwise provide, and the lemongrass keeps the finish dry.
What goes with it
Nothing heavy. This is a first-drink-of-the-evening or a last-drink-of-the-evening proposition, and it does not want to compete with a plate. If something must be served alongside, make it salty and small — potato chips, honestly, are the right answer and I have stopped apologizing for it.
Part of Drinks & Zero-Proof.
