Oven baked 4-ingredient chicken Marlborough is the kind of practical, comforting main dish that earns a permanent place in family recipe boxes: boneless chicken breasts baked in a simple mixture that turns into a rich, savory sauce with almost no fuss. It reflects the mid-century American habit of building flavor from pantry staples and convenience ingredients, and the result is tender chicken with a golden, herb-flecked finish that feels far more special than the short ingredient list suggests.
Serve this chicken with buttered egg noodles, mashed potatoes, or fluffy rice to catch the sauce, and add a simple green vegetable such as steamed broccoli, green beans, or a crisp salad for balance. For a casual family meal, warm dinner rolls or toasted bread on the side make it easy to mop up every bit of the pan juices.
Oven Baked 4-Ingredient Chicken Marlborough
Servings: 4
Ingredients
4 boneless, skinless chicken breast halves
1/2 cup mayonnaise
1 packet dry onion soup mix (about 1 ounce)
1 teaspoon dried parsley
Directions
1. Preheat the oven to 375°F and line a baking sheet or shallow baking pan with foil for easy cleanup. Lightly coat the foil with cooking spray or a thin film of oil so the chicken does not stick.
2. Pat the chicken breasts dry and arrange them in a single layer on the prepared pan. If the pieces are very thick, gently pound them to an even thickness so they bake more evenly.
3. In a small bowl, stir together the mayonnaise, dry onion soup mix, and dried parsley until smooth and well combined.
4. Spread the mayonnaise mixture evenly over the tops of the chicken breasts, coating each piece well so the surface stays moist as it bakes.
5. Bake for 30 to 40 minutes, or until the chicken is cooked through and reaches 165°F in the thickest part. The topping should be golden and the edges lightly browned.
6. Let the chicken rest for 5 minutes before serving so the juices settle and the sauce thickens slightly on the pan.
Variations & Tips
Use chicken thighs: Boneless, skinless chicken thighs work very well here and stay especially juicy. They may need a similar or slightly shorter baking time depending on size, so check for doneness with a thermometer.
Add a crunchy finish: For a bit more texture, sprinkle a light layer of plain or seasoned breadcrumbs over the coated chicken during the last 10 minutes of baking. This gives the top a more casserole-like crust.
Make it ahead: You can mix the topping and coat the chicken several hours in advance, then cover and refrigerate until ready to bake. This is helpful for holiday meals or busy weeknights when you want dinner mostly assembled ahead of time.
Adjust the salt carefully: Onion soup mix is quite seasoned, so taste-based additions of salt usually are not necessary. If you want extra flavor, a little black pepper, paprika, or a pinch of garlic powder is a better choice than more salt.
Prevent dry chicken: If your chicken breasts are especially large, slicing them horizontally into thinner cutlets can help them cook more evenly and stay tender. Pull the pan from the oven as soon as the thickest piece reaches 165°F.