Caramelized Onion Potatoes Au Gratin
Caramelized Onion Potatoes Au Gratin is the ultimate comfort food, featuring tender russet potatoes layered with sweet caramelized onions, all enveloped in a rich, creamy Gruyère cheese sauce. Baked to golden perfection, this dish not only pleases the palate but also serves as a stunning centerpiece for any dinner table. Perfect for family gatherings or cozy nights in, it promises to be a crowd-pleaser that leaves everyone craving more.
- Prep Time: 20 minutes
- Cook Time: 65 minutes
- Total Time: 1 hour 25 minutes
- Yield: Serves 8
- Category: Side Dish
- Method: Baking
- Cuisine: American
Ingredients
Scale
- 2 lbs russet potatoes, thinly sliced
- 2 medium sweet onions, sliced
- 1 cup heavy cream
- 1 cup shredded Gruyère cheese
- 4 tbsp unsalted butter
- 3 cloves garlic, minced
- 1 tsp fresh thyme (or ½ tsp dried)
- Salt and pepper to taste
Instructions
- Preheat your oven to 375°F (190°C) and lightly grease a baking dish.
- In a skillet over medium heat, melt the butter. Add onions with a pinch of salt; cook until golden brown (15-20 minutes). Stir in garlic during the last few minutes.
- In a bowl, whisk together heavy cream, thyme, salt, and pepper.
- Layer half of the potato slices in the baking dish. Top with half the caramelized onions and half the cream mixture. Repeat layers.
- Sprinkle Gruyère cheese on top and cover with foil.
- Bake covered for 45 minutes, then remove foil and bake an additional 15-20 minutes until bubbly and golden brown.
- Let sit for 10 minutes before serving.
Nutrition
- Serving Size: 1 cup (200g)
- Calories: 390
- Sugar: 2g
- Sodium: 480mg
- Fat: 23g
- Saturated Fat: 13g
- Unsaturated Fat: 9g
- Trans Fat: 0g
- Carbohydrates: 36g
- Fiber: 3g
- Protein: 9g
- Cholesterol: 60mg