cover pic for Slow CookerInstant Pot Caramelized Onions (3)

{VIDEO} Slow Cooker/Instant Pot Caramelized Onions

  • Author: Fit SlowCooker Queen
  • Prep Time: 10 minutes
  • Cook Time: 12 hours
  • Total Time: 12 hours 10 minutes
  • Yield: Approximately 1 1/2 cups 1x


  • 2 pounds onions, sliced
  • 2 tablespoons olive oil or melted butter
  • Pinch salt


Slow Cooker

  1. Add the onions to the slow cooker. Add oil or butter and salt. Toss until onions are evenly coated.
  2. Cook LOW 10-12 hours.
  3. Season with salt to your liking.

Electric Pressure Cooker (Instant Pot)

  1. Add onions and oil/butter to the pressure cooker.
  2. Close lid and seal valve. Set manual, high pressure to 5 minutes. When done, quick release pressure.
  3. Strain liquid from onions. Add onions back to the pressure cooker. Turn on the sauté mode and cook the onions, stirring constantly, until they’re caramelized, approx 5 minutes.
  4. Season with salt to your liking.


Refrigerate covered for up to 5 days or freeze for up to 3 months.

See notes about removing excess liquid when using the slow cooker.

This recipe is for plain-Jane basic caramelized onions. You can add in ingredients like a tsp of balsamic vinegar or brown sugar.