Blanch onions in a large pot of boiling water 1 minute, then drain in a colander and transfer to a bowl of cold water to stop cooking. Drain and peel onions.
Bring sugar and water to a boil in a 3-quart heavy saucepan over moderate heat, stirring until sugar is dissolved. Boil, without stirring, washing down any sugar crystals on side of pan with a pastry brush dipped in cold water, until syrup turns pale golden. Continue to cook caramel, gently swirling pan, until deep golden.
Immediately remove from heat, then carefully add wine (caramel will steam vigorously and harden). Return pan to heat and simmer, stirring, until caramel is dissolved.
Add onions, red-wine vinegar, oil, salt, peppercorns, and bay leaf and simmer, uncovered, stirring occasionally, until onions are tender, about 1 hour. Transfer onions to a bowl using a slotted spoon, then boil liquid until reduced to about 1 cup, 10 to 15 minutes. Stir in balsamic vinegar, then pour liquid over onions and cool to room temperature. Chill, covered, 1 to 3 days (for flavors to develop).
Serve chilled or at room temperature.
Cooks' note: Onions keep, covered and chilled, 3 weeks.

Kitchen-Friendly View

Nutrition Facts

Per Serving Per 100 g

Amount Per 1 Serving
Calories	5029.09 Kcal (21056 kJ)
Calories from fat	133.25 Kcal
		% Daily Value*
Total Fat	14.81g	23%
Sodium	2541.45mg	106%
Potassium	206.78mg	4%
Total Carbs	971.94g	324%
Sugars	61.18g	245%
Dietary Fiber	1133.77g	4535%
Protein	680.26g	1361%
Vitamin C	1.2mg	2%
Iron	0.1mg	1%
Calcium	23.6mg	2%

Amount Per 100 g
Calories	623.96 Kcal (2612 kJ)
Calories from fat	16.53 Kcal
		% Daily Value*
Total Fat	1.84g	23%
Sodium	315.32mg	106%
Potassium	25.65mg	4%
Total Carbs	120.59g	324%
Sugars	7.59g	245%
Dietary Fiber	140.67g	4535%
Protein	84.4g	1361%
Vitamin C	0.2mg	2%
Calcium	2.9mg	2%

* Percent Daily Values are based on a 2000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.
Find out how many calories should you eat.

Tastes

salty
savory
bitter
sweet

Search recipes
by ingredients

Construct & Analyze
Your Recipe

Analyze

Try this similar recipes

Sweet and Sour Cabbage

White wine vinegar and 12 more..
Shrimp Cocktail

Water, Onion, sliced, Lemon, sliced, Fresh parsley, Salt and 11 more..
Duck Breasts with Pinot Noir and Cherry Sauce

Sugar, Water, Dried tart cherries, Red wine vinegar and 9 more..
Sauerbraten

Beef roast, boneless, Water, Wine vinegar, Onions, sliced and 9 more..
House Italian Dressing

Dry mustard, Sugar, Water, Garlic (finely chopped ) and 8 more..
Caramel-Pecan Bûche de Noël

Pecans, toasted, cooled, All purpose flour and 16 more..
Chewy Pretzels

Active dry yeast, Sugar, Water, warmed to 110 f and 13 more..
Kate's Easy German Sauerbraten

Water, Red wine, Cider vinegar, Lemon, sliced and 13 more..
Swedish 1-2-3 Vinegar

Water, Sugar, White wine vinegar and 5 more..
Quick Pickled Garlic with Mediterranean Flavors

White wine vinegar, Sherry wine and 6 more..