What wine should I actually float on this?

Something dry with real tannin and acid. A Malbec, a Syrah, a cheap honest Cotes du Rhone. You're not opening a special bottle, you're using half an ounce, so the kitchen pour you'd cook with is fine. Avoid anything sweet, oaky to the point of vanilla, or fortified. Sweet wine on top of a sweetened sour is how you end up with something that tastes like a candle.

Does the float really need a bar spoon, or is that bartender showing off?

It needs the spoon, or at least the patience the spoon represents. Pour the wine slowly over the back of a spoon held a hair above the drink's surface and it spreads out and settles into a clean layer. Dump it straight in and it just sinks and mixes, and now you've made a muddy purple whiskey sour. Still drinkable, less interesting, and you've lost the whole reason the drink exists.

Egg white or no egg white?

This is the eternal sour argument and the answer is do what you want. The classic New York Sour skips it, and the wine float is doing the textural and visual heavy lifting anyway. Add egg white and you get a plush meringue cap, but you'll fight to float the wine cleanly on top of foam. Pick your spectacle. You can't have both layers fighting for the same real estate.

The New York Sour: A Whiskey Sour Wearing a Wine Crown

Somebody looked at a perfectly good whiskey sour and decided it needed a hat. That hat is a float of dry red wine, and against all reason it works. The wine sits on top, dark and sullen, then bleeds down into the drink as you go. First sip is bright and tart. Last sip is tannic and brooding. Same glass, two moods.

2 ozBourbon

0.75 ozLemon Juice

0.75 ozSimple Syrup

0.5 ozDry Red Wine (float)

Garnish: Lemon wheel

Build the sour first and ignore the wine entirely until it's done. Bourbon, fresh lemon, simple syrup in equal smaller measures, shaken hard over ice until the tin frosts and your hand hurts. You want aeration here, that pale cloudy texture that says the citrus and sugar have been beaten into one thing rather than three. Strain over fresh cubes in a rocks glass. Now the wine. Pour it slowly over the back of a bar spoon held just above the surface so it lands soft and stays put. Dry red, please. Something with tannin and a little grip, not a sweet jammy thing that'll turn the whole drink to cough syrup. The float is structural, not decorative. As the ice melts it migrates down, and the drink changes under you. That's the entire point, so don't stir it.

In the Cocktail Codex framework the New York Sour lives in the Daiquiri family, and the wine on top is a distraction from why. Strip the float and you've got the family in its purest form: a base spirit, tart citrus, and a sweetener, balanced into a single bright thing. That's the sour template, the load-bearing wall of the whole category. Bourbon swaps in for rum, lemon for lime, but the architecture is identical to a Daiquiri's. No daisy liqueur doing the sweetening, just simple syrup, which keeps it honestly in the sour camp rather than drifting toward its cousins. The Bee's Knees does this with gin and honey. The Brown Derby does it with bourbon and grapefruit. The New York Sour is the same skeleton with a glass of wine balanced on its head, and recognizing that is the difference between following a recipe and understanding what you're holding.

The thing has the worst name in the business, because it isn't from New York and nobody can prove otherwise. Chicago has a claim. So does Boston, where it occasionally went by Continental Sour. By the 1880s the trick of clarets floating on whiskey sours was knocking around American bars under a dozen aliases, and the geography was always more marketing than fact. What survived is the gesture, and the gesture is good. Most cocktails that lean on a visual flourish are selling you the photograph and not the drink. This one earns it. The red wine isn't there to look pretty for your phone, though it does, it's there because tannin and acid and a little oak from the wine genuinely change how the sour tastes as you drink it. That's rare. Most garnishes are theater. This one is a second act. Drink it slow enough to notice the shift and you'll understand why a hundred-and-forty-year-old parlor trick refuses to die.

Open the New York Sour recipe card on Speed Pour

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FAQ

What wine should I actually float on this?: Something dry with real tannin and acid. A Malbec, a Syrah, a cheap honest Cotes du Rhone. You're not opening a special bottle, you're using half an ounce, so the kitchen pour you'd cook with is fine. Avoid anything sweet, oaky to the point of vanilla, or fortified. Sweet wine on top of a sweetened sour is how you end up with something that tastes like a candle.
Does the float really need a bar spoon, or is that bartender showing off?: It needs the spoon, or at least the patience the spoon represents. Pour the wine slowly over the back of a spoon held a hair above the drink's surface and it spreads out and settles into a clean layer. Dump it straight in and it just sinks and mixes, and now you've made a muddy purple whiskey sour. Still drinkable, less interesting, and you've lost the whole reason the drink exists.
Egg white or no egg white?: This is the eternal sour argument and the answer is do what you want. The classic New York Sour skips it, and the wine float is doing the textural and visual heavy lifting anyway. Add egg white and you get a plush meringue cap, but you'll fight to float the wine cleanly on top of foam. Pick your spectacle. You can't have both layers fighting for the same real estate.