Caramelized Onion Dip

Melt the butter in a large sauté pan over medium-low heat. Add the sliced onions and the sugar to the pan. Sauté the onions until they start to turn brown. Reduce heat to low and continue to cook until the onions are caramelized and golden brown; this usually takes about 45 minutes.

Allow the onions to cool. Set aside a small amount of the onions to garnish the top of the dip.

In the bowl of a food processor, combine the onions, sour cream, buttermilk, Worcestershire sauce, salt, and cayenne. Process until fully combined, scraping down the sides. Taste for seasoning and adjust the salt and cayenne. Refrigerate until ready to serve.

Serve garnished with the reserved caramelized onions on top.