My mother made this for my father every anniversary dinner for 45 years. He said it was better than any restaurant.

This oven baked 4-ingredient chicken Vendome is the kind of quietly elegant dish that feels like a restaurant classic but is simple enough for a Tuesday night. In my family, it was the quintessential anniversary dinner: my mother made it for my father every year for 45 years, and he swore it was better than anything he ever ordered out. The concept is very French-inspired—tender chicken breasts baked under a creamy mushroom sauce and a blanket of nutty Gruyère—yet it relies on only four core ingredients and a hot oven to do most of the work. It’s a lovely example of how good technique and a few well-chosen ingredients can turn into something worthy of a celebration.

Serve this chicken Vendome straight from the baking dish, with a large spoon so you can scoop plenty of the creamy mushroom sauce over each portion. It’s especially good with a simple buttered egg noodle or mashed potato base to catch the sauce, plus a crisp green vegetable like steamed haricots verts, roasted asparagus, or a lemony green salad to balance the richness. A dry white wine—such as Chardonnay or a French-style Sauvignon Blanc—pairs beautifully, as does a crusty baguette for mopping up every last bit of sauce.

Servings: 4

4 small boneless, skinless chicken breasts (about 1 1/2 pounds total)

Preheat the oven to 375°F (190°C). Lightly grease a cream-colored oval baking dish or similar 2-quart shallow casserole with the butter or oil so the chicken won’t stick and the sauce can bubble freely.

Pat the chicken breasts dry with paper towels. If they are very thick on one end, gently pound them to an even thickness (about 3/4 inch) so they cook evenly. Season both sides of the chicken with the kosher salt and black pepper.

Arrange the chicken breasts in a single layer in the prepared baking dish, leaving just a bit of space between each piece so the sauce can flow around them.

Scatter the sliced mushrooms evenly over and around the chicken, tucking some into the spaces so every bite gets a mix of chicken and mushrooms.

Pour the heavy cream evenly over the chicken and mushrooms. The cream should come about halfway up the sides of the chicken; it will thicken into a rich, spoonable sauce as it bakes.

Sprinkle the grated Gruyère evenly over the top, covering the chicken and most of the mushrooms. Don’t pack it down; a loose layer melts and browns more attractively.

Transfer the baking dish to the preheated oven and bake, uncovered, for 25 to 35 minutes, or until the chicken is just cooked through and the sauce is bubbling around the edges. The cheese should be fully melted and lightly golden in spots. An instant-read thermometer inserted into the thickest part of a breast should register 165°F (74°C).

If you’d like a deeper golden top, move the dish to the upper third of the oven and broil for 1 to 2 minutes, watching closely so the cheese browns but does not burn.

Remove the baking dish from the oven and let the chicken rest for 5 to 10 minutes. The sauce will thicken slightly as it cools, creating the creamy interior you can reveal with a silver serving spoon.

To serve, spoon a chicken breast onto each plate and generously ladle the creamy mushroom and Gruyère sauce over the top. Serve straight from the baking dish at the table for a cozy, restaurant-at-home anniversary feel.

Because this is a very simple, four-ingredient style recipe, small adjustments can make it feel personalized while preserving the spirit of the dish. For a slightly lighter version, you can replace up to half of the heavy cream with whole milk or low-sodium chicken broth; the sauce will be a bit thinner but still flavorful. If you prefer a stronger cheese profile, swap part of the Gruyère for Comté or Emmental, which offer similar nutty notes, or add a tablespoon of grated Parmesan over the top before baking. For a mild mushroom flavor, stick with white button mushrooms; for a deeper, earthier flavor, use cremini or a mix of cremini and shiitake (remove shiitake stems, which can be tough). If your chicken breasts are very large, consider cutting them in half lengthwise so they cook more evenly and stay tender. To keep the recipe close to its original four-ingredient concept, treat salt, pepper, and the butter or oil for greasing as pantry staples rather than primary components. Food safety tips: Always handle raw chicken with care—use a separate cutting board, wash your hands, knives, and surfaces thoroughly with hot, soapy water after contact, and never reuse plates or utensils that touched raw chicken without washing them first. Bake until the chicken reaches an internal temperature of 165°F (74°C) in the thickest part, and refrigerate leftovers within 2 hours of cooking in a shallow container; reheat gently until steaming hot before serving.