Description
Cheesy French Onion Potato Bake – a rich, cozy, French onion soup-inspired side dish featuring thinly sliced potatoes layered with caramelized onions, herbs, and bubbling cheese. Perfect for holiday feasts and family gatherings.
Ingredients
Scale
- 3 lbs potatoes, thinly sliced
- 3 large onions, thinly sliced
- 3 tbsp butter
- 2 tbsp olive oil
- 1 tsp salt
- 1 tsp black pepper
- 1 tsp dried thyme
- 1 tsp garlic powder
- 1 cup beef broth (or vegetable broth for vegetarian)
- 1 1/2 cups shredded Gruyère or mozzarella
- 1 cup shredded cheddar
- Fresh thyme for garnish
Instructions
- Preheat oven to 375°F (190°C) and grease a baking dish.
- In a skillet, heat butter and olive oil. Add onions, salt, and pepper; cook on low 20–25 minutes until deeply caramelized.
- Stir in thyme and garlic powder; cook 1 minute more.
- Spread half the potatoes into the baking dish, season lightly, and add half the onions.
- Sprinkle half the cheese on top.
- Repeat with remaining potatoes, onions, and cheese.
- Slowly pour broth over the casserole.
- Cover with foil and bake 35 minutes.
- Uncover and bake another 20–25 minutes until golden and bubbly.
- Garnish with fresh thyme and serve warm.
Notes
- Can be assembled a day ahead; refrigerate covered and bake the next day (you may need to extend bake time).
- For a lighter version, use part-skim cheese or a mix of cheese with lower-fat options.
- Use vegetable broth to make this vegetarian-friendly.
- Potato slices should be evenly thin for even cooking.
- Let the dish rest for 5–10 minutes before serving.
- Prep Time: 20 minutes
- Cook Time: 55 minutes
- Category: Side Dish
- Method: Baking
- Cuisine: French
Nutrition
- Serving Size: 1 serving
- Calories: Approximately 420 kcal
- Sugar: Approximately 5 g
- Sodium: Approximately 600 mg
- Fat: Approximately 23 g
- Saturated Fat: Approximately 12 g
- Unsaturated Fat: Approximately 11 g
- Trans Fat: 0 g
- Carbohydrates: Approximately 34 g
- Fiber: Approximately 5 g
- Protein: Approximately 15 g
- Cholesterol: Approximately 60 mg
Keywords: Cheesy French Onion Potato Bake, French onion potato bake, cheesy potato casserole, holiday side dish, potato bake, Gruyère, cheddar