Creamed Onion Gratin

Creamed Onion Gratin

Makes 6-8 servings

This recipe has gluten free notes.


  • 2 medium yellow onions, cored and quartered lengthwise
  • ¼ cup olive oil
  • Kosher salt and freshly ground black pepper, to taste
  • 2 tbsp. unsalted butter
  • 2 tbsp. flour (GF use cornstarch)
  • 1 cup heavy cream
  • ¼ cup dry white wine
  • Freshly grated nutmeg, to taste
  • ½ cup finely grated parmesan
  • 3 oz. Gorgonzola, crumbled
  • ¼ tsp. paprika


  1. Heat oven to 350°. Toss onions with oil in a 9″ × 11″ baking dish and season with salt and pepper. Bake, stirring occasionally, until soft and lightly browned, about 1 hour; set aside. Heat oven to broil.
  2. Heat butter in a 2-qt. saucepan over medium-high heat; add flour (Corn starch), and cook, stirring, until smooth, about 1 minute. Add cream and wine, and cook, stirring, until thickened, about 5 minutes. Season sauce with salt, pepper, and nutmeg.
  3. Pour sauce evenly over onions. Sprinkle with parmesan, dot with Gorgonzola, and sprinkle with paprika; broil until cheese is melted and golden brown on top, about 2 minutes.