Ingredients
Chicken
- 2 large boneless skinless chicken breast halves (approximately 1 pound)
- 2 tablespoons canola oil (divided, plus more for oiling the baking dish)
- Salt and freshly ground black pepper, to taste
Vegetables
- 2 bunches asparagus (medium to wide width, about 1 1/2 pounds, tough ends trimmed)
Sauce
- 3 tablespoons unsalted butter
- 3 tablespoons all-purpose flour
- 1/2 cup dry sherry (or dry white wine)
- 2 cups half-and-half
- 1 1/4 cups grated Gruyere cheese (or Parmesan cheese, or a combination)
- 1/4 teaspoon ground white pepper
- Pinch nutmeg
Toppings and Garnish
- 1/4 cup sliced almonds
- Chopped fresh parsley
Instructions
- Prepare Baking Dish: Lightly oil a 13 x 9-inch or similar-sized baking dish with 1 tablespoon of canola oil to prevent sticking.
- Cook the Chicken: Preheat the oven to 350°F (175°C). Drizzle the chicken breasts with the remaining tablespoon of canola oil and season generously with salt and freshly ground black pepper. Bake the chicken for 22-25 minutes or until the internal temperature reaches 165°F (74°C) and the chicken is no longer pink. Let the chicken cool slightly before cutting it into 1/2-inch to 3/4-inch pieces. Keep the oven temperature unchanged for later baking.
- Blanch the Asparagus: While the chicken cooks, prepare an ice bath by filling a large bowl with ice and cold water. Bring a large saucepan of generously salted water to a boil. Working in batches of 2 to 3, blanch the asparagus by boiling for 30-45 seconds until bright green and slightly tender. Immediately transfer the asparagus to the ice bath to stop cooking and preserve color. Repeat until all asparagus is blanched.
- Prepare Asparagus for Baking: Remove the asparagus from the ice bath and pat dry thoroughly with paper towels or a clean kitchen towel. Cut the asparagus into three equal pieces and place them evenly in the prepared baking dish. Season lightly with salt and black pepper to taste.
- Make the Sauce: In the saucepan used for blanching asparagus, melt the unsalted butter over medium heat. Add the all-purpose flour and cook while whisking constantly for 1-2 minutes, ensuring the flour does not brown, creating a roux. Gradually stir in the dry sherry or white wine until a thick paste forms. Slowly whisk in the half-and-half, stirring constantly until the sauce is smooth. Bring to a gentle boil, then reduce heat to low and simmer until thickened, about 2-3 minutes.
- Add Cheese and Seasonings: Gradually stir in the grated Gruyere cheese a handful at a time, whisking constantly until melted and smooth. Remove the sauce from the heat and stir in ground white pepper and a pinch of nutmeg for balanced seasoning. Fold the cut chicken pieces into the cheese sauce until thoroughly coated.
- Assemble the Dish: Pour the creamy chicken and cheese sauce mixture evenly over the asparagus in the baking dish. Use a spatula to smooth the top surface. Cover the dish loosely with aluminum foil to prevent drying out during baking.
- Bake the Chicken Divan: Place the covered dish in the preheated oven and bake for 30-35 minutes until the casserole is heated through and begins to bubble around the edges.
- Add Almonds and Finish Baking: Remove the foil and evenly sprinkle the sliced almonds over the top of the casserole. Return the dish to the oven uncovered and bake for an additional 5 minutes to toast the almonds until golden and fragrant.
- Garnish and Serve: Remove the chicken divan from the oven and sprinkle with freshly chopped parsley for a pop of color and fresh flavor. Serve immediately while warm for the best taste and texture.
Notes
- For a lighter option, substitute half-and-half with whole milk or a milk alternative, but note the sauce may be less rich.
- If Gruyere is unavailable, Parmesan or a blend of Parmigiano-Reggiano and mozzarella can be used for a similar cheesy flavor.
- To make ahead, prepare the casserole through step 7, cover tightly, and refrigerate. Add almonds and bake when ready to serve.
- Ensure asparagus is not overcooked during blanching; it should remain bright and slightly crisp.
- The dish can be served with cooked rice or crusty bread to soak up the delicious sauce.
- Use dry white wine if dry sherry is unavailable to maintain flavor balance.
- Prep Time: 15 minutes
- Cook Time: 45 minutes
- Category: Main Course
- Method: Baking
- Cuisine: French-American