Onions Au Gratin

Ingredients

• Servings: 1
• 1/4 cup butter
• 6 yellow onions, halved and sliced 1/2 inch thick
• 1/2 cup beef broth
• 1/2 cup heavy cream
• 2 tablespoons all-purpose flour
• 1/4 teaspoon salt
• 1/8 teaspoon pepper
• 1/2 cup shredded swiss cheese
• 1/2 cup grated parmesan cheese

Recipe

Cook Time: 30 mins Ready Time: 30 mins


• preheat the oven to 350 degrees f (175 degrees c). grease an 8 inch square baking dish.
• melt the butter in a large skillet over medium heat. add onions; cook and stir until tender, about 5 minutes. transfer to the prepared baking dish. in a medium bowl, stir together the beef broth and flour until smooth. mix in the cream and season with salt and pepper; pour over the onions. sprinkle swiss cheese and parmesan cheese over the top.
• bake for 25 to 30 minutes in the preheated oven, until cheese is golden brown and the sauce is bubbly.