01 -
3 tablespoons extra-virgin olive oil, divided
02 -
1 large onion, halved and thinly sliced
03 -
2 teaspoons freshly chopped thyme
04 -
Kosher salt, to taste
05 -
Freshly ground black pepper, to taste
06 -
2 cloves garlic, minced
07 -
1 3/4 pounds boneless skinless chicken breasts, cut into 1-inch pieces
08 -
1/2 teaspoon dried oregano
09 -
2 tablespoons all-purpose flour
10 -
1 1/2 cups low-sodium beef broth
11 -
1 cup shredded Gruyère cheese
12 -
Freshly chopped parsley, for garnish (optional)