Slow Cooker Caramelized Onions {Cafe Zupas Cookbook}

Crock Pot Caramelized Onions

Slow Cooker Caramelized Onions

(Weight Watchers Friendly Crock Pot Cooking Day 158)

The inspiration for these delicious slow cooker caramelized onions comes from the Cafe Zupas cookbook.

Are you familiar with Cafe Zupas?

You may not be because they only have locations in Utah, Arizona and Nevada right now.

I’m lucky to live only a few miles from their Phoenix location.

I fell in love with their house made soups, salads, sandwiches and desserts after my friend, Beth, turned me on to them.

So, needless to say I was thrilled when a copy of their Blogger’s Annual Cookbook with a gift card showed up in my mailbox recently :-)

Cafe Zupas Cookbook

Cafe Zupas Blogger’s Annual Cookbook

A collection of the best fresh and delicious recipes from Cafe Zupa’s bloggers, organized by season, I identified all kinds of recipes I can’t wait to try.

Recipe’s I’ve tagged include:

  • Honey Lemon Pound Cake with Fresh Strawberries
  • Greek Pasta Salad
  • A Better Tin Foil Dinner
  • Roasted Butternut Squash Salad

But right now I was focused on finding a recipe I could make work in the slow cooker and found exactly what I was looking for on page 54 - Caramelized Onions - which are best when cooked low and slow.

I’ve been know to burn onions when trying to caramelize them on the stove.

But, it’s really hard to overcook onions in the slow cooker.

I cooked a large batch in my 6-Quart slow cooker overnight.

In the morning I cooked them a little longer with the lid ajar, allowing most of the liquid to evaporate.

So far I’ve used these sweet, delicious slow cooker caramelized onions on a ham and swiss cheese flatbread and with grilled asparagus, mushrooms and pesto in a wrap. They’re a great way to add delicious flavor with minimal calories and points. And are Simply Filling too.

More  Delicious Ways to Use Slow Cooker Caramelized Onions:

  • tossed with pasta
  • as a pizza topping
  • in an omelet
  • on a burger or sandwich
  • in a wrap
  • on a baked potato
  • on top of grilled meat or fish
  • stirred into soup or dip

The extras can be stored in the refrigerator for several days or portioned out for the freezer.

5.0 from 1 reviews
Slow Cooker Caramelized Onions {Cafe Zupas Cookbook}
Prep time
Cook time
Total time
Slow Cooker Caramelized Onions are a delicious way to boost flavor to so many dishes with minimal fat, calories and points plus
Recipe type: Side
Serves: 12
  • 6 large yellow onions
  • 2 tablespoons olive oil
  • ½ teaspoon salt
  1. Ideal Slow Cooker: 6-Quart
  2. Peel and thinly slice all of the onions into half moons. Transfer all the onions to the slow cooker. Ideally, the slow cooker should be ½ to ¾ full.
  3. Drizzle with olive oil and toss the onions to coat them with the oil.
  4. Sprinkle with salt.
  5. Cover and cook on LOW for about 10 hours. If possible, you can stir them occasionally, but this is totally optional. If you like deeper colored onions, cook 2 to 4 hours more with the lid ajar to let the excess moisture escape. Check them every hour or so until they have reached they have the color and taste that seems good to you.
  6. Remove the onions with a slotted spoon and store in covered containers in the refrigerator or freezer.
Martha's Notes
Nutritional Estimates Per Serving (1/4 cup): 28 calories, 1.6 g fat, 3.4 g carbs, .6 g fiber, .4g protein and 1Weight Watchers PointsPlus


If you liked this recipe for slow cooker caramelized onions you might also like:

Slow Cooker Roasted Garlic
Slow Cooker French Onion Meatballs
Slow Cooker Beefy French Onion Soup

*PointsPlus® for slow cooker caramelized onions calculated by Simple Nourished Living; Not endorsed by Weight Watchers International, Inc.

Today’s food for thought…

“Too many of us are not living our dreams because we are living our fears.”
~ Les Brown

Do you have a favorite motivational quote? I’d love for you to leave it for me in the comments!!

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  1. diana says

    This looks yummy – and this restaurant looks FAB!! They must put one in northern Nevada – dang Vegas gets everything!!! I’d be their biggest fan with those salads!

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