Ingredients:
- 2 large (about 2.5 lbs / 1.1 kg) yellow onions, thinly sliced
- 2 tablespoons olive oil
- 1 tablespoon unsalted butter
- 1 teaspoon granulated sugar
- 1/2 teaspoon kosher salt
- 1/4 teaspoon freshly ground black pepper
- 1 tablespoon balsamic vinegar
- 8 ounces (226g) full-fat cream cheese, softened to room temperature
- 1 cup (240g) full-fat plain Greek yogurt