Slow Cooker Caramelized Onions (with Yellow Onions!)

4.7(9)

Slow Cooker Caramelized Onions, cooked on high for 5 hours. Just mix yellow onions, butter, sugar and salt in a crockpot and come back to delicious buttery sweet caramelized onions! Freeze in ice cube trays to keep them for months. Save this recipe if you are growing onions in your garden!

·published 2020-01-18

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AmericanSide Dish

Servings

['24']

Total time

5h 10m

prep 10 min

Calories / serving

114 kcal

Ingredients (4)

serves

3 pounds yellow onions (peeled and sliced)onion
1/2 cup melted butterbutter
1 teaspoon saltsalt
1 teaspoon sugarsugar

Instructions (3 steps)

01Add everything into a large slow cooker and stir so the butter coats the onions completely.
02Cook on high for 5-6 hours or until onions become soft and caramelized. My slow cooker usually takes 5 hours.
03Serve with your favorite dish, store in the refrigerator for a few days or freeze to preserve. To freeze, allow to cool and then place in ice cube trays and freeze. When frozen, pop them out of tray and place in freezer bags to freeze. Defrost as you need them. Frozen caramelized onions can last 6-8 months.

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Rich recipe — supports nutrition-aware planning.