4 servings (serving size: about 1 onion)

How to Make It

Step 1

Combine butter and onions in an electric slow cooker. Cover and cook on low 24 hours.

Step 2

Remove onions with a slotted spoon.

Step 3

Pour the cooking liquid into a bowl. Cover and chill.

Step 4

Skim solidified fat from surface; reserve for another use. Discard remaining liquid.

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