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Ingredients
- 3 to 5 pounds yellow onions (4 to 5 large onions)
- 3 tablespoons extra-virgin olive oil or melted butter
- 1/2 teaspoon salt
- 4-quart to 6-quart slow cooker
Preparation
Step 1
Fill the cooker with enough sliced onions to make it 1/2 or 3/4 full, about 3 to 6 onions depending on the size of your slow cooker. Put the lid on, set the timer for the longest, slowest time allowed, and let those onions simmer away.
10 hours makes soft, lightly browned onions that still have a bit of bite. These are perfect for soups and topping sandwiches. For jammier, even more deeply caramelized onions, continue cooking for another few hours, but this time, leave the lid ajar so the liquid can evaporate. (Any liquid remaining after cooking is fantastic added your next soup or risotto, by the wa
While the onions are cooking, stir them occasionally — this will help them cook more evenly, but isn't strictly necessary.