Crock Pot Caramelized Onions

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Let your crock pot do the cooking with this recipe for easy caramelized onions. Their rich, savory flavor is great on steak, tacos, or French onion soup.

Caramelized onions are delicious on so many dishes…with steak, tacos, even in scrambled eggs. They’re delicious, but they take forever to cook.

I recently realized that there’s an easy way to make caramelized onions–in the crock pot! They cooked while we slept–easy and delicious.

Tools Used to Make Crock Pot Caramelized Onions

Borner V-Slicer Mandoline: perfect for making evenly sliced onions and makes the most of each onion (very little waste)

Crock Pot: my favorite crock pot for making these onions

Crock Pot Caramelized Onions Instructions

Start with a bunch of onions. I got a huge bag at Costco and this is the perfect way to use them up.

bowl of onions

Cut off just the top and peel off the brown skin. Now you have a naked onion with the roots attached (that will help hold it together).

onion without skin

I need to introduce you to an amazing device, the Borner V-Slicer Mandoline.

mandoline slicer over bowl

It makes perfect, even slices.

slice of onion from mandolin slicer

It’s sharp as all heck, so always use the hand guard thingy.

mandoline hand guard

onion in hand guard

There’s practically no waste, either.

last bits of onion from mandoline

Dump all your onions into the crock pot with 2 tablespoons butter or olive oil and 1/2 teaspoon of salt.

onion slices in crock pot

Put the lid on and let them cook down on Low, stirring once or twice. Here they are after four hours. (A couple tablespoons of brown sugar would have been good here…maybe next time.)

onions cooking in crock pot

I gave them one last stir and headed off to bed. In the morning, I was greeted with this beautiful sight.

caramelized onions in crock pot

Easy Caramelized Onions in the Crock Pot

Ingredients

4 yellow onions, sliced

2 Tablespoons butter or olive oil

1/2 teaspoon salt

2 Tablespoons brown sugar (optional)

Instructions

Place all ingredients in slow cooker. Stir gently to combine. Put the lid on and cook on Low for 4 hours. Stir and add brown sugar, if using. Continue to cook on Low for 6-8 more hours, stirring occasionally.

Is your mouth watering?

Crock Pot Caramelized Onions

Prep Time: 10 minutes
Cook Time: 10 hours
Total Time: 10 hours 10 minutes

Ingredients

  • 4 yellow onions, sliced
  • 2 tbsp butter or olive oil
  • 1/2 tsp salt
  • 2 tbsp brown sugar, (optional)

Instructions

  1. Place all ingredients in slow cooker. Stir gently to combine. Put the lid on and cook on Low for 4 hours. Stir and add brown sugar, if using. Continue to cook on Low for 6-8 more hours, stirring occasionally.

Hi, Im Pam!

I created Brown Thumb Mama to share my natural living journey, and help you live a greener life. Thanks for being here!

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