Caramelized Maui Onion Dip
recipe from Lisa @ The Cutting Edge of Ordinary
Make this at least an hour ahead of time to allow the flavors to develop.

2 tablespoons olive oil
2 Maui onions (or other sweet onions) halved and thinly sliced (about 5 cups)
1 cup sour cream
½ cup buttermilk
1 teaspoon kosher salt

Heat the oil in a large nonstick frying pan over medium heat. Add the onions and cook, stirring occasionally, until brown, sticky and caramelized (about 20 minutes). If the pan starts to burn, reduce the heat to medium-low and add 1 tablespoon of water, stirring well. Transfer the onions to a small bowl and chill until cold (about 1 hour).

Reserve 1 tablespoon of the onions.

In a food processor, pulse the remaining onions, sour cream, buttermilk and salt until just combined. Transfer to a serving dish and top with the reserved onions. Chill for at least an hour before serving.