Directions
- 1Peel and slice the onions, ensuring the slices are not too thin to prevent them from becoming stringy.
- 2Add the sliced onions to the crockpot.
- 3Cut the butter into pieces and place them on top of the onions in the crockpot.
- 4Set the crockpot to low and cook for 8 hours.
- 5After 8 hours, switch the crockpot to high and cook for another 2 hours to achieve a more caramelized look.
- 6Fill the jars with the caramelized onions, leaving a half-inch headspace.
- 7Wipe the rims of the jars with vinegar.
- 8Place the flats and rings on the jars, tightening them fingertip tight.
- 9Load the jars into your canner.
- 10Pressure can for 75 minutes, or water bath can for 3 hours.
- 11Remove the jars from the canner and let them cool.
Ingredients
- 6 white or yellow onions
- 6 tablespoon butter
- salt
Equipment
knifecrockpotjarscannerjar lifterspoon
Tips
- For Rebel Water Bath canning, process for 3 hours.
- Make sure to stir every few hours if possible when cooking in the crockpot.
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