Lemon Dijon Chicken Thighs with Caramelized Onions
Lemon Dijon Chicken Thighs with Caramelized Onions is a bright and flavorful dish featuring juicy, tender chicken thighs coated in a tangy lemon and Dijon mustard marinade, topped with sweet, melt-in-your-mouth caramelized onions. This easy recipe is perfect for weeknight dinners yet elegant enough to impress guests, combining rich textures with fresh citrus and aromatic herbs.
- Author: Mary
- Prep Time: 15 minutes
- Cook Time: 40 minutes
- Total Time: 55 minutes
- Yield: 4 servings 1x
- Category: Main Course
- Method: Searing and Baking
- Cuisine: American
- Diet: Gluten Free
Chicken and Marinade
- 4 bone-in, skin-on chicken thighs
- 2 tablespoons fresh lemon juice (about 1 lemon)
- 1 teaspoon lemon zest
- 2 tablespoons Dijon mustard
- 2 tablespoons olive oil
- 2 cloves garlic, minced
- 1 teaspoon fresh thyme leaves (or rosemary)
- Salt, to taste
- Freshly ground black pepper, to taste
Caramelized Onions
- 2 large onions, thinly sliced
- 1 tablespoon olive oil or butter
- Pinch of salt
Optional Garnishes
- Fresh thyme, parsley, or rosemary sprigs
- Lemon slices or extra lemon zest
- Prepare the Marinade: Combine lemon juice, lemon zest, Dijon mustard, olive oil, minced garlic, fresh thyme, salt, and pepper in a bowl. Whisk until smooth and creamy to create a tangy glaze that will infuse the chicken with flavor.
- Marinate the Chicken: Place the chicken thighs in a shallow dish or resealable bag and pour the marinade over them. Ensure every piece is fully coated, then refrigerate and let marinate for at least 30 minutes, up to 2 hours for deeper flavor.
- Caramelize the Onions: While the chicken marinates, thinly slice the onions. Heat olive oil or butter over medium-low heat in a large skillet, add the sliced onions with a pinch of salt, and cook slowly, stirring occasionally, until they turn a rich golden brown and develop a sweet aroma, about 20-30 minutes.
- Cook the Chicken: Preheat the oven to 400°F (200°C). Heat a skillet over medium-high heat and sear the chicken thighs skin-side down until golden and crispy, about 5 minutes. Flip and cook the other side for 2 minutes, then transfer the skillet to the oven and roast for 15-20 minutes until fully cooked through.
- Serve and Garnish: Remove the chicken from the oven and let it rest for a few minutes. Top generously with warm caramelized onions and garnish with extra fresh herbs or lemon slices if desired before serving.
Notes
- Pat chicken dry before marinating to help the skin crisp up nicely during cooking.
- Cook onions low and slow over medium-low heat to avoid burning and achieve perfect caramelization.
- Use a cast-iron skillet if possible for better heat retention during searing and roasting.
- Let the chicken rest a few minutes after cooking to keep it juicy and tender.
- Adjust the lemon juice and zest to taste for a stronger citrus flavor.
Nutrition
- Serving Size: 1 chicken thigh with onions
- Calories: 350 kcal
- Sugar: 6 g
- Sodium: 450 mg
- Fat: 22 g
- Saturated Fat: 5 g
- Unsaturated Fat: 15 g
- Trans Fat: 0 g
- Carbohydrates: 10 g
- Fiber: 1.5 g
- Protein: 28 g
- Cholesterol: 110 mg
Keywords: lemon chicken, dijon mustard chicken, caramelized onions, chicken thighs, gluten free dinner, easy chicken recipe, tangy chicken