Oven-Roasted Chicken with Creamy Onion Sauce
Poultry

Oven-Roasted Chicken with Creamy Onion Sauce

ML
By Marie Lefebvre · Updated November 1, 2026

Juicy, golden chicken pieces baked in a rich onion cream sauce with garlic and Dijon mustard. A no-fuss one-pan dinner that practically cooks itself — perfect for busy weeknights or a relaxed family Sunday.

Prep⏱️ 60 min
Servings👥 4 servings
Difficulty📊 Very Easy
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🛒 Ingredients

4 servings

4
  • 1 kg (2.2 lbs) chicken pieces (thighs and drumsticks)
  • 1 packet (40 g) onion soup mix
  • 3 tablespoons sour cream or thick crème fraîche
  • 2 tablespoons Dijon mustard
  • 1 medium onion, finely sliced
  • 3 garlic cloves, minced
  • 2 tablespoons olive oil
  • Salt and freshly ground black pepper
  • Fresh thyme sprigs

Directions

  1. 1

    Preheat your oven to 375 °F (190 °C). Rinse the chicken pieces under cold water and pat them completely dry with paper towels.

  2. 2

    In a bowl, combine the onion soup mix, sour cream, Dijon mustard, sliced onion, minced garlic, and olive oil. Stir until smooth and creamy. Season with salt and pepper.

  3. 3

    Arrange the chicken in a baking dish and coat every piece generously with the onion cream, pressing it in to ensure full coverage on all sides.

  4. 4

    Cover the dish tightly with aluminum foil and bake for 25 minutes — the trapped steam keeps the chicken moist while absorbing all the flavors.

  5. 5

    Remove the foil, scatter thyme sprigs over the top, and continue baking 20–25 minutes until the chicken is deep golden and cooked through (internal temp 165 °F / 74 °C).

  6. 6

    Rest for 5 minutes before serving. Excellent with steamed rice, mashed potatoes, or roasted vegetables.

💡 Chef's Tip

Marinate the chicken overnight in the fridge for deeper flavor. Drizzle a little honey over the chicken in the last 5 minutes for an irresistible caramelized glaze.