Agrodolce substitutes

This is the real answer, and it is worth knowing that agrodolce is a technique rather than a bottle. Simmer the vinegar and sugar in a small pan for three to four minutes until it is glossy and lightly syrupy. It tastes exactly like agrodolce because it is agrodolce. Cheaper and better than anything you can buy.

Best for

caponata, agrodolce onions, sweet and sour squash or zucchini, roasted or pan-fried fish, pork, duck and chicken

White wine vinegar gives a lighter, brighter version and red wine vinegar a deeper one. Traditional Sicilian versions often add a spoonful of raisins or currants and toasted pine nuts at the end. Pull it off the heat while it still runs off the spoon, it thickens a lot as it cools.

The closest thing in a bottle, because it is the same idea in a different vinegar: sweet, sour, thick and glossy. It is darker and sweeter than a classic agrodolce and carries balsamic's raisin-and-oak depth, so caponata made with it tastes rich and jammy rather than sharp and lively. It also stains the vegetables brown.

Best for

roasted vegetables, drizzling over meat or fish, cipollini and roasted onions, plate finishing

Many bottled glazes are already very sweet. Add a teaspoon of red wine vinegar per tablespoon of glaze to push the balance back toward sour, which is where agrodolce should sit.

Two ingredients most kitchens already have, warmed together for a minute until they combine. Honey makes it floral and a little softer than sugar does, so an agrodolce for duck or squash comes out mellower and less bracing. Not quite as thick as a proper reduction unless you let it simmer.

Best for

duck and pork, roasted squash and carrots, cheese boards, grilled radicchio

Do not boil honey hard for long, it turns bitter and slightly burnt-tasting. A gentle simmer for sixty to ninety seconds is plenty.

Functionally the same thing, culturally very different. Bottled Chinese sweet-and-sour sauce is sweeter, thickened with starch rather than reduced, and usually carries pineapple, ketchup or ginger notes. Caponata made with it tastes recognisably sweet-sour but also faintly like takeaway, and the starchy thickness reads wrong against the vegetables.

Best for

emergencies where any sweet-sour element is better than none, stir-fried vegetables, meatballs

The extra vinegar is important, since the bottled version is far too sweet for an Italian dish. Taste and keep adding vinegar until it makes you wince slightly.

A real-world pantry fix that does the sweet-sour job and adds a chili warmth agrodolce would not normally have. On grilled vegetables or pork it is genuinely nice, just not Italian in any sense. The garlic and chili in the bottle also announce themselves clearly against a delicate dish like caponata.

Best for

grilled or roasted vegetables, pork and chicken, glazing meatballs or sausages

Best when the rest of the dish is robust. Avoid it in anything where the agrodolce is the main flavor event.

If you use plain vinegar and skip the sweetness, you have not made a substitution, you have removed half the point. Caponata without the sweet side tastes aggressively sour and slightly hollow, and agrodolce onions come out simply pickled. If you genuinely have no sweetener at all, use less vinegar so the dish reads as gently tart rather than harsh.

Best for

situations with no sweetener in the house

Almost anything sweet rescues this: a spoonful of jam, a chopped date, a few raisins, a squeeze of fruit juice, even a spoonful of ketchup. Sweetness matters more than which sweetener.