Chicken Buckingham is one of those practical mid-century casseroles that explains exactly why handwritten recipe cards were treasured and passed around. With just a handful of ingredients, it turns plain chicken breasts into a rich, comforting baked dish with creamy sauce, melted Swiss cheese, and a buttery cracker topping that browns beautifully in the oven. It has the kind of economical, company-friendly appeal that made it a reunion favorite in the 1960s, and it still works today because it is easy, dependable, and deeply satisfying.
Serve this with rice, buttered egg noodles, or mashed potatoes to catch the creamy sauce, plus something green like steamed broccoli, green beans, or a crisp salad to balance the richness. If you are bringing it to a family-style meal, a fruit salad, dinner rolls, or simple glazed carrots fit the vintage spirit of the dish nicely.
Oven Baked 4-Ingredient Chicken Buckingham
Servings: 6
Ingredients
6 boneless, skinless chicken breast halves
6 slices Swiss cheese
1 can (10 1/2 ounces) condensed cream of chicken soup
1 sleeve buttery round crackers, crushed
Directions
1. Preheat the oven to 350°F. Lightly grease a 9x13-inch rectangular baking dish.
2. Arrange the chicken breasts in a single layer in the prepared baking dish. If the pieces are especially thick, pound them lightly so they cook more evenly.
3. Lay one slice of Swiss cheese over each piece of chicken, covering the surface as evenly as possible.
4. Spoon the condensed cream of chicken soup evenly over the cheese and spread it gently to cover most of the top.
5. Sprinkle the crushed crackers evenly over the top to create a full crumb layer.
6. Bake uncovered for 40 to 50 minutes, or until the chicken is cooked through, the cheese is melted into the sauce, and the crumb topping is golden brown. Let it rest for 5 to 10 minutes before serving.
Variations & Tips
Add a little butter: If you want a richer, more classic casserole-style topping, drizzle 2 to 3 tablespoons melted butter over the cracker crumbs before baking. This helps the top brown more evenly and gives it extra flavor.
Use chicken cutlets: Thin chicken cutlets work especially well here and can shorten the baking time. Start checking for doneness around 30 to 35 minutes so the meat stays tender.
Try a different condensed soup: Cream of mushroom or cream of celery can stand in for cream of chicken if that is what you have on hand. Each gives the casserole a slightly different old-fashioned supper-club personality.
Season quietly if needed: Many vintage versions rely on the soup, cheese, and crackers for seasoning, but a light sprinkle of black pepper or garlic powder over the chicken can be helpful if you prefer a little more depth. Go lightly, since the Swiss cheese and soup already add salt.
Make it reunion-ready: You can assemble the casserole a few hours ahead, cover it, and refrigerate it before baking. For the best crumb texture, add the crackers just before it goes into the oven.