Instructions: Bring large saucepan of water to a boil. Trim roots of onions, leaving onion intact. Blanch onions for 2 minutes; transfer to ice bath. Slip skins off onions with paring knife.

Heat oil in a medium skillet over high heat. Add onions, and cook, stirring occasionally until dark brown, about 5 minutes. Add wine; bring to a boil. Reduce heat to medium-low; simmer with cover partially on, until liquid is almost completely reduced and onions are very tender, about 25 minutes. Add butter, and stir until incorporated. Season to taste.

Serves 6 to 8.

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