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4.8 from 18 votes

Big Batch Caramelized Onions

These big-batch caramelized onions are slow-cooked with oil and salt until soft and jammy. Perfect to have in the fridge for soups, sandwiches, omelets, pizza, pasta, and so, so much more. Here's how to make them.

Prep Time
1 hr
Cook Time
6 hrs
Total Time
7 hrs
Servings: 15 (1/2-cup servings)
Calories: 93 kcal
Course: Condiments
Cuisine: American

Ingredients

  • 20 large (about 7 lbs) yellow onions peeled and halved
  • 1 tablespoon mild olive or vegetable oil
  • 2 teaspoon kosher salt

Instructions

    Cup of Yum
  1. Using a sharp knife or a food processor fitted with the slicing blade to thinly slice the onions.☞ TESTER TIP: If you have a food processor, avail yourself of it. No tears.
  2. In your largest heavy-bottomed pot over low heat, warm the oil. Dump in the onions and salt and stir to combine.
  3. Cover the pot until the onions begin softening, lifting the lid and stirring every 5 minutes, at least 30 minutes.
  4. Uncover and cook the onions, stirring every 20 to 30 minutes, for about 6 hours. The onions will be golden, much smaller in volume, and soft.
  5. Increase the heat to medium and cook the onions, being careful to stir every 5 minutes to prevent burning, until dark golden brown and very, very soft, 30 to 40 minutes more. Remove from the heat and let the onions cool completely.
  6. Divvy the onions into 1⁄4-cup portions in either resealable bags or small containers with tightly fitted lids. Store in the freezer to have on hand at all times!

Nutrition Information

Serving 1serving Calories 93kcal (5%) Carbohydrates 20g (7%) Protein 2g (4%) Fat 1g (2%) Saturated Fat 0.2g (1%) Monounsaturated Fat 0.2g Trans Fat 0.01g Sodium 319mg (13%) Fiber 4g (16%) Sugar 9g (18%)

Nutrition Facts

Serving: 15(1/2-cup servings)

Amount Per Serving

Calories 93

% Daily Value*

Serving 1serving
Calories 93kcal 5%
Carbohydrates 20g 7%
Protein 2g 4%
Fat 1g 2%
Saturated Fat 0.2g 1%
Monounsaturated Fat 0.2g 1%
Trans Fat 0.01g 1%
Sodium 319mg 13%
Fiber 4g 16%
Sugar 9g 18%

* Percent Daily Values are based on a 2,000 calorie diet.