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Slow-Cooker Caramelized Onions

Name: Slow-Cooker Caramelized Onions
Prep time: 10 min
Cook time: 6 h
Total time: 6 h 10 min
Yield: 8 servings
Ingredients: 4 large sweet onions, thinly sliced; 2 tablespoons butter; 1/4 teaspoon salt; 1/4 teaspoon pepper

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Test Kitchen Approved

Total Time

Prep: 10 min. Cook: 6 hours

Makes

8 servings

Updated: May. 24, 2023

Slow-cooker caramelized onions will make any meal taste better. Toss them on a burger or sandwich, or in scrambled eggs or omelets. These also make an amazing onion dip. —Heather Ingersoll, Seattle, Washington

Slow-Cooker Caramelized Onions Recipe photo by Taste of Home

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Ingredients

4 large sweet onions, thinly sliced
2 tablespoons butter
1/4 teaspoon salt
1/4 teaspoon pepper

Directions

Add all ingredients to 5-qt. slow cooker. Cover, cook on high, stirring occasionally, until onions are browned and tender, about 5 hours. Uncover and cook 1 additional hour, or until most of the liquid has evaporated. Serve as desired. Refrigerate in airtight container.
Freeze option: Freeze cooled onions in freezer containers up to 3 months. To use, thaw in refrigerator.

Slow-Cooker Caramelized Onions Tips

How often should you stir the slow-cooker caramelized onions?

The beauty of making caramelized onions in the slow cooker (as opposed to on the stovetop) is that you don't have to stir them constantly. You should stir this onion recipe occasionally throughout the 5 hours that they're in the slow cooker, just to make sure they don't burn on the bottom. You'll know they're done when they're browned and tender.

Can you use other kinds of onions to make slow-cooker caramelized onions?

Besides sweet onions (like Vidalias, Walla Wallas and Mauis), you can also use other types of onions for this recipe. We recommend swapping for yellow or white onions.

How can you use slow-cooker caramelized onions?

You can use caramelized onions in a multitude of ways. We recommend serving over Brie cheese, crackers, hot dogs or as an onion dip. You could also toss them in a number of our recipes, like this caramelized onion and garlic pasta recipe or this caramelized onion flatbread.

—Christina Herbst, Taste of Home Assistant Digital Editor

Nutrition Facts

1/4 cup: 79 calories, 3g fat (2g saturated fat), 8mg cholesterol, 110mg sodium, 13g carbohydrate (8g sugars, 2g fiber), 1g protein.