How To Caramelize Onions in the Slow Cooker

Directions

1. 1
   Thinly slice all the onions: Peel and thinly slice all of the onions into half-moons.
2. 2
   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.