Yield
3 cups

How to Make It

Step 1

Cook onions in boiling water to cover 10 minutes; drain. Plunge into ice water to stop the cooking process; drain. Peel; set aside.

Step 2

Cook butter and brown sugar in a saucepan over medium heat, whisking often, until butter melts. Whisk in vinegar and salt.

Step 3

Add onions; bring to a boil. Reduce heat, and simmer, uncovered, 15 minutes or until thickened.

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