White Wine Sauce Chicken

Ingredients

• 3 tablespoons olive oil
• 5 chicken thighs, bone-in and skin-on
• 1 teaspoon kosher salt, plus more, to taste
• 1/2 teaspoon freshly ground black pepper, plus more, to taste
• 1 teaspoon herbes de Provence
• 1 tablespoon unsalted butter
• 1 cup yellow onion, diced
• 4 cloves garlic, thinly sliced
• 1/2 cup white wine
• 1/2 cup chicken broth
• 1/2 cup heavy cream
• 2 teaspoons prepared honey mustard
• 2 teaspoons Dijon mustard
• 2 teaspoons country mustard or old-style mustard
• 4 sprigs thyme, leaves only, plus more, to taste, for garnish
• rice, optional, to taste, cooked and hot, for serving