Ingredients:

  • 2 lbs yellow onions, thinly sliced
  • 2 tbsp unsalted butter
  • 1 tbsp olive oil
  • 1/2 tsp kosher salt
  • 8 oz cream cheese, softened to room temperature
  • 1/2 cup plain Greek yogurt
  • 1 cup Gruyère cheese, shredded
  • 1 tsp garlic powder
  • 1/2 tsp cracked black pepper
  • 1/2 cup Gruyère cheese, shredded
  • 2 tbsp fresh chives, finely chopped

Instructions:

  1. Melt the butter and olive oil in a large heavy-bottomed skillet over medium-low heat. Add the sliced onions and salt.
  2. Stir occasionally for 25–30 minutes until the onions transition to a deep, mahogany-colored jam and smell nutty.
  3. In a medium mixing bowl, beat the softened cream cheese and Greek yogurt until smooth.
  4. Fold in the caramelized onions, 1 cup of shredded Gruyère, garlic powder, and black pepper until the mixture is uniform.
  5. Transfer the mixture into an 8-inch oven-safe baking dish, smoothing the top with a spatula.
  6. Sprinkle the remaining 1/2 cup of Gruyère cheese evenly over the surface.
  7. Bake at 375°F (190°C) for 20–25 minutes until the edges are bubbling.
  8. Broil on high for 60–90 seconds until the cheese forms a golden-brown crust. Garnish with fresh chives.