Frugal Gourmet's Baked Onions Au Gratin
Transform simple pantry staples into an elegant and budget-friendly masterpiece with the Frugal Gourmet's Baked Onions Au Gratin. This dish showcases tender parboiled yellow onions bathed in a velvety Gruyere cheese sauce, delicately seasoned with nutmeg for a warm, aromatic touch. Topped with a crisp, golden breadcrumb and cheese crust, this comforting gratin delivers gourmet flavors without breaking the bank. Perfect as a hearty side dish or a vegetarian main, it's an easy-to-make recipe that feels special enough for any occasion. With just 20 minutes of prep time and an irresistible combination of creamy, savory, and crunchy textures, this dish will quickly become a family favorite. Keywords: baked onions au gratin, frugal gourmet recipe, Gruyere cheese, vegetarian side dish, budget-friendly recipes.
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Ingredients
- 4 large Yellow onions
- 3 tablespoons Unsalted butter
- 2 tablespoons All-purpose flour
- 1.5 cups Whole milk
- 1 teaspoon Salt
- 0.5 teaspoon Black pepper
- 0.25 teaspoon Ground nutmeg
- 1 cup Shredded Gruyere cheese
- 0.5 cup Breadcrumbs
- 1 tablespoon Olive oil
- 1 tablespoon Fresh parsley
Directions
Step 1
Preheat your oven to 375°F (190°C) and grease a baking dish large enough to fit four onions snugly.
Step 2
Peel the onions and slice off the very top and bottom to create flat edges. Place the onions in a large pot of boiling water and parboil for 10 minutes. Drain and set aside to cool slightly.
Step 3
In a medium saucepan, melt the butter over medium heat. Add the flour and whisk constantly for 1-2 minutes to create a roux.
Step 4
Slowly pour in the milk while continuing to whisk, ensuring no lumps form. Cook for 3-5 minutes, or until the sauce thickens and coats the back of a spoon.
Step 5
Stir in the salt, black pepper, and ground nutmeg. Remove the saucepan from heat and mix in half of the Gruyere cheese until melted and smooth.
Step 6
Cut a small hollow in the top center of each onion to create a cavity. Place the onions in the prepared baking dish.
Step 7
Spoon the cheese sauce generously over each onion, ensuring they are well-coated.
Step 8
In a small bowl, mix the breadcrumbs, remaining Gruyere cheese, olive oil, and parsley. Sprinkle this mixture evenly over the onions.
Step 9
Bake in the preheated oven for 30-35 minutes, or until the onions are tender and the topping is golden and crispy.
Step 10
Allow the dish to cool slightly before serving. Enjoy your Baked Onions Au Gratin as a side or standalone dish!
Nutrition Facts
| Serving size | (1209.4g) |
|---|
| Amount per serving | % Daily Value* |
|---|---|
| Calories | 1602.6 |
| Total Fat 101.5g | 0% |
| Saturated Fat 50.8g | 0% |
| Polyunsaturated Fat 1.7g | |
| Cholesterol 256.9mg | 0% |
| Sodium 4174.1mg | 0% |
| Total Carbohydrate 127.9g | 0% |
| Dietary Fiber 13.1g | 0% |
| Total Sugars 47.5g | |
| Protein 60.0g | 0% |
| Vitamin D 185.0IU | 0% |
| Calcium 1699.2mg | 0% |
| Iron 5.5mg | 0% |
| Potassium 1548.7mg | 0% |
Source of Calories