How To Caramelize Onions in the Slow Cooker

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Brenda
Brenda @cook_3128549
Texas

These are so good and versatile.

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Ingredients

  1. 3to 5 pounds yellow onions (4 to 5 large onions)
  2. 3 tbspextra-virgin olive oil or melted butter
  3. 1/2 tspsalt

Cooking Instructions

  1. 1

    Peel and thinly slice all of the onions into half moons. Transfer all the onions to the slow cooker — the slow cooker should be half to three-quarters full.

  2. 2

    Drizzle the olive oil or melted butter and the salt, if using, over the top of the onions. Toss to evenly coat all the onions with a thin glaze of oil.

  3. 3

    Cover the slow cooker and cook for 10 hours on LOW. If you're around while the onions are cooking, stir them occasionally — this will help them cook more evenly, but isn't strictly necessary.

  4. 4

    After 10 hours, the onions will be golden-brown and soft, and they will have released a lot of liquid. If you like them as they are now, stop cooking and pack them up.

  5. 5

    Optional — cook an additional 3 to 5 hours with the lid ajar: If you'd like jammier, more concentrated onions with a deeper color, continue cooking for another 3 to 5 hours on LOW. Leave the lid ajar so the liquid can evaporate. Check every hour and stop cooking whenever the onions look and taste good to you.

  6. 6

    Remove the onions with a slotted spoon and transfer them to refrigerator or freezer containers. If any liquid remains in the slow cooker, transfer the liquid to a separate container — this can be used as cooking broth in another recipe. Onions will keep in the refrigerator for one week or in the freezer for at least 3 months.

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Written by

Brenda
Brenda @cook_3128549
on
Texas
Just a mom who loves to cook and feed people good food! :-)
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