Ingredients
Scale
- 4 large Vidalia onions, sliced thin
- 2 tablespoons butter
- 1 tablespoon olive oil
- 1 teaspoon thyme
- 1 cup heavy cream
- 1 cup grated Gruyère cheese
- 1/2 cup breadcrumbs
- Salt & pepper to taste
Instructions
- Preheat oven to 375°F (190°C). Butter a gratin dish.
- In a pan, melt butter with olive oil and cook onions until deeply caramelized (about 30–40 min).
- Spread onions into dish, pour over cream, sprinkle thyme, salt & pepper.
- Top with cheese and breadcrumbs. Bake uncovered for 20–25 min until golden and bubbling.
Notes
- Try adding garlic or rosemary for extra flavor.
- Use any good melting cheese if Gruyère is not available.
- Prep Time: 15 min
- Cook Time: 45 min
- Category: Side Dish
- Method: Baking
- Cuisine: American
- Diet: Vegetarian
Nutrition
- Serving Size: 1 slice
- Calories: 320
- Sugar: 6g
- Sodium: 340mg
- Fat: 24g
- Saturated Fat: 13g
- Unsaturated Fat: 9g
- Trans Fat: 0g
- Carbohydrates: 18g
- Fiber: 2g
- Protein: 8g
- Cholesterol: 60mg