Baked Chicken in White Sauce Recipe: Velvety Parmesan and Herb Indulgence

This baked chicken dish redefines comfort food with its velvety white sauce and tender, juicy meat. The Parmesan and herb blend creates a rich, aromatic experience that’s both satisfying and elegant.

Simple to prepare yet impressive, this recipe combines creamy sauce with perfectly cooked chicken for a meal that feels special without the fuss. Ready in under an hour, it’s ideal for weeknight dinners or casual entertaining.

Ingredients for Baked Chicken in White Sauce

Velvety sauce meets tender chicken with aromatic herbs and rich Parmesan for comfort in every bite.

The chicken quality is paramount for this dish. Air-chilled boneless, skinless breasts from Whole Foods or Costco yield the juiciest results. Pounding to even thickness ensures uniform cooking. For the Parmesan, Parmigiano-Reggiano is non-negotiable—BelGioioso produces excellent domestic options. The herbs should be freshly opened to preserve their aromatic potency.

Need to lighten the sauce? Half-and-half or whole milk can replace heavy cream at a 1:1 ratio. No fresh parsley? Dried at one-third the amount works, though fresh offers superior brightness. For gluten-free adaptation, rice flour or cornstarch can substitute all-purpose flour in the roux. The chicken broth can be homemade or high-quality store-bought.

Prepare the sauce just before baking to prevent thickening. Leftovers keep in the refrigerator for 3-4 days or freeze for up to 3 months. Reheat gently on the stovetop with a splash of milk to restore the velvety texture. Always bring refrigerated chicken to room temperature before cooking.

Step-by-Step Instructions for Baked Chicken in White Sauce

Master this technique and you will achieve a velvety, restaurant-quality white sauce every time.

Step 1: Prepare and Season the Chicken

Preheat your oven to 375°F. Lightly grease a baking dish with the 1 tbsp olive oil, ensuring full coverage. Place the 1.5 lb boneless skinless chicken breasts between plastic wrap and pound to an even ½-inch thickness for uniform cooking.

Season both sides generously with the 1 tsp salt, 0.5 tsp black pepper, and 0.5 tsp onion powder. This dry brine enhances flavor penetration. Arrange the breasts in a single layer in the prepared dish.

Step 2: Create the Roux-Based White Sauce

In a saucepan over medium heat, melt 4 tbsp unsalted butter. Add the 0.25 cup all-purpose flour and whisk constantly for 2-3 minutes until the mixture turns a pale golden blond and emits a nutty aroma. This is your roux—the foundation of the sauce.

Gradually whisk in the 2 cups whole milk and 0.5 cup chicken broth, ensuring no lumps form. Add the 3 cloves minced garlic cloves, 1 tsp dried thyme, and 1 tsp dried rosemary. Simmer for 5 minutes until the sauce thickens enough to coat the back of a spoon.

Step 3: Finish the Sauce and Assemble

Reduce heat to low and stir in the 0.5 cup heavy cream and 1 cup parmesan cheese. Continue stirring until the parmesan melts completely and the sauce achieves a smooth, velvety consistency. Taste and adjust seasoning if needed.

Pour the sauce evenly over the chicken breasts in the baking dish, ensuring each piece is fully submerged. This guarantees even cooking and maximum flavor absorption during baking.

Step 4: Bake to Perfection

Bake uncovered in the preheated oven for 25-30 minutes, or until the chicken reaches an internal temperature of 165°F and the sauce is bubbling at the edges. Look for the tops to turn a light golden brown with the sauce slightly thickened.

If the sauce begins to brown too quickly, loosely tent the dish with foil. The chicken should be tender and juicy, with the sauce clinging beautifully to each piece.

Step 5: Rest and Garnish

Remove from the oven and let the dish rest for 5 minutes. This allows the sauce to thicken further and the juices in the chicken to redistribute. Sprinkle with the 2 tbsp fresh parsley just before serving for a pop of color and freshness.

Serve immediately while hot, spooning extra sauce over each portion. The parsley garnish adds a bright contrast to the rich, creamy sauce and golden chicken.

Storing and Reheating Leftovers

Refrigerator Storage

Let this dish cool for no more than 2 hours before transferring to airtight containers. I use glass containers with locking lids to prevent leaks. Store at 40°F or below for up to 3-4 days. The flavors actually deepen as it rests. ❄️

Freezer Storage

For longer storage, freeze in portion-sized containers for up to 3 months. I recommend quart-sized freezer bags laid flat to save space. Squeeze out excess air to prevent freezer burn. Label with the date so you can track freshness.

Stovetop Reheating

My preferred method: Transfer to a saucepan with 2 tbsp milk or chicken broth and heat over medium-low heat for 8-10 minutes. Stir occasionally to prevent sticking. This restores the velvety texture beautifully. 🔥

Microwave Reheating

For quick meals, microwave individual portions covered with a damp paper towel. Use 50% power for 2-3 minutes, stir, then continue in 30-second intervals until reaching 165°F. Add a splash of milk if the sauce looks dry.

Oven Reheating

Preheat oven to 350°F and place in a baking dish with ¼ cup broth. Cover with foil and heat for 15-20 minutes. This works well for larger portions and maintains the original baked texture.

Frequently Asked Questions