Kosher salt and freshly ground black pepper, to taste
2tablespoonchopped fresh chives
Instructions
Melt butter in a large skillet over low to medium low heat. Add onions and brown sugar, and cook, stirring often, until deep golden brown, about 45-55 minutes.
Stir in garlic until fragrant, about 1 minute.
Stir in wine, scraping any browned bits from the bottom of the skillet; remove from heat.
Stir in vinegar and Worcestershire.
Let cool completely, setting aside 2 tablespoons caramelized onions for garnishing, if desired.
In a medium bowl, combine cream cheese, sour cream and mayonnaise.
Stir in caramelized onions; season with salt and pepper, to taste.
Serve, garnished with reserved caramelized onions and chives, if desired, or cover and chill for up to 3 days.