Ingredients

3 tablespoons extra-virgin olive oil

2 medium sweet onions, such as Vidalia, chopped (3 1/2 cups)

1/2 bulb fennel, cored and chopped (1 1/4 cups)

1 teaspoon fresh thyme leaves, plus more for serving

Kosher salt

1/3 cup dry sherry

2 teaspoons Worcestershire sauce

16 ounces labneh or plain Greek yogurt

1 small clove garlic, minced (1/2 teaspoon)

Crackers and crudités, for serving

Preparation

In a large saucepan, heat 2 tablespoons oil over medium. Add onions, fennel, thyme, and 1/4 teaspoon salt. Cook, stirring often, until brown, about 45 minutes. (If necessary, add a splash of water to keep onions from sticking.) Add sherry and Worcestershire; cook until evaporated, about 5 minutes. Let cool completely.

Stir together labneh, garlic, and 1 teaspoon salt. Spread into a bowl or plate; top with onion mixture. Drizzle with remaining 1 tablespoon oil, sprinkle with more thyme, and serve with crackers and crudités.