Cast Iron Chicken Thighs & Mushrooms

Ingredients

• 1 package boneless skinless chicken thighs
• Kosher salt & freshly ground black pepper
• Flour
• 1 tablespoon oil
• 2 tablespoons butter
• 5 cloves garlic, minced
• 1 onion, diced
• 1 package mushrooms, sliced
• 1 cup chicken broth
• 2 teaspoons chopped fresh thyme (optional)