Chicken W/dijon & Shrooms – Nana's Recipes

Ingredients

• 1 1/2 to 2 pounds chicken thighs, skin removed
• Kosher salt and freshly ground black pepper
• 2 tablespoons extra-virgin olive oil, divided
• 1 onion, chopped
• 1/4 pound white button mushrooms, quartered
• 3 cloves garlic, minced
• 1 tomato, chopped
• 1 tablespoon flour
• 1 teaspoon dried tarragon
• 1/2 cup white wine
• 1 cup chicken stock, plus more if needed
• 1/4 cup Dijon mustard
• 2 tablespoons sour cream