If you’ve ever made caramelized onions on the stovetop, you know how labor-intensive it can be—constant stirring, long cooking time, and watchful eyes required. But what if you could achieve those same golden, sweet, deeply savory results with zero hovering? Enter: Slow Cooker Caramelized Onions.
This method is a total game-changer, especially when cooking for a crowd or meal prepping. With just a few ingredients and your crockpot, you can turn humble onions into a rich, jammy side that elevates burgers, sandwiches, soups, dips, and more.
🧅 Why Use a Slow Cooker?
Caramelizing onions low and slow is the key to unlocking their natural sugars and turning them irresistibly sweet and golden. The slow cooker creates the perfect low-temperature environment to allow this transformation without burning or babysitting.
Plus, it frees up your stove for other tasks, making it ideal for holiday prep, large meals, or weekly batch cooking.
📋 Ingredients You’ll Need
- 10 cups of sliced sweet yellow onions (about 2.5–3 lbs before peeling)
- 4 tablespoons salted butter, cut into cubes
- 1 teaspoon salt
- ½ teaspoon white sugar
- Optional alternative: 1 teaspoon balsamic vinegar for a deeper, tangier sweetness
🍽 Equipment
- A 4-quart or larger slow cooker
- (The Crock-Pot brand works great, but any dependable model will do)
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