The Method
Boil the Pasta
Under 10 mins
Preheat your oven to 375°F (190°C) and grease a 9x13-inch baking dish. Boil your pasta in salted water until it is just shyof al dente (it will continue cooking in the oven). Drain and set aside.
Sauté the Veggies & Deglaze
6-8 mins
In a large skillet, melt 2 tablespoons of butter over medium-high heat. Add the mushrooms and onions, cooking until the moisture evaporates and the mushrooms turn golden. Add the garlic for 30 seconds. Pour in the dry sherry, scraping up the bottom of the pan until the liquid reduces by half. Transfer the mixture to a bowl.
Build the Scratch Sauce
5 mins
In the same skillet, melt the remaining 2 tablespoons of butter over medium heat. Whisk in the flour and cook for 1 to 2 minutes to eliminate the raw flour taste. Slowly pour in the chicken stock, whisking constantly to avoid lumps, followed by the heavy cream. Simmer until thickened, then stir in the nutmeg, salt, and black pepper.
Remove the sauce from the heat. Stir in your cooked chicken, the mushroom mixture, the cooked pasta, and half of the Parmesan cheese. Toss well to coat every strand. Pour into your prepared baking dish. Top with the remaining Parmesan and the cracker crumbs. Bake for 20 minutes until the edges are bubbly and the top is a deep golden brown.
The Secret Nuance: Ground nutmeg might seem like a strange addition to a savory chicken pasta, but it is the invisible anchor of old-fashioned white sauces. A tiny pinch doesn't make the dish taste like dessert; instead, it cuts through the heavy fats of the cream and butter, bringing out the woodiness of the mushrooms.
Why This Version Wins
By using a traditional roux-and-stock method instead of a can of cream of mushroom, the texture of the sauce stays perfectly silky rather than thick and gelatinous. The dry sherry cuts through the richness, giving the dish a complex, bright depth that balances the heavy cream. It’s a timeless tribute to the grand hotels of the Edwardian era, right on your dinner table.
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