Description
Crispy French Onion Potato Gratin delivers rich, savory comfort straight from classic French cuisine. Caramelized onions and golden cheese create a luxurious side dish you’ll crave at every gathering.
Ingredients
Scale
Main Ingredients:
- 4 large russet potatoes, thinly sliced
- 2 medium onions, thinly sliced
- 1 cup heavy cream
- 1 cup whole milk
- 1 cup shredded Gruyère cheese
- 1/4 cup grated Parmesan cheese
Dairy and Seasonings:
- 2 tablespoons butter
- 2 cloves garlic, minced
- 1/2 teaspoon salt
- 1/4 teaspoon black pepper
- 1/4 teaspoon ground thyme
Garnish:
- 1 tablespoon fresh parsley, chopped
Instructions
- Warm the oven to 375°F (190°C) and generously coat a 9×9-inch baking vessel with butter for optimal non-stick performance.
- Transform onions into a golden delicacy by sautéing in a large skillet over medium heat until they become translucent and caramelized, approximately 8-10 minutes. Introduce minced garlic and continue cooking for an additional 1-2 minutes to enhance the aromatic profile.
- Craft a luxurious cream fusion by whisking together heavy cream, milk, salt, pepper, and thyme in a separate mixing bowl until thoroughly combined.
- Create alternating layers of thinly sliced potatoes within the prepared baking dish, ensuring even distribution and maximum flavor absorption.
- Cascade the cream mixture over the potato layers, allowing it to seep between each slice and infuse rich, velvety essence throughout the gratin.
- Generously scatter the sautéed onion and garlic medley across the potato surface, providing a robust and savory foundation.
- Shower the entire dish with a harmonious blend of Parmesan and Gruyère cheeses, creating a decadent and tantalizing cheese blanket.
- Envelop the baking dish with aluminum foil and bake for 40-45 minutes, allowing the potatoes to tenderize and absorb the creamy liquid.
- Remove the foil and return to the oven for an additional 10 minutes, transforming the surface into a crisp, golden-brown masterpiece.
- Elevate the presentation by garnishing with freshly chopped parsley, adding a vibrant touch of color and herbaceous freshness before serving.
Notes
- Slice potatoes uniformly to ensure even cooking and consistent texture throughout the gratin.
- Caramelize onions slowly to develop deep, rich flavor without burning, which intensifies the dish’s overall taste profile.
- Experiment with cheese varieties like aged cheddar or fontina for unique flavor twists while maintaining the creamy, melty essence.
- Reduce dairy for lighter version by substituting half-and-half or using lower-fat milk alternatives without compromising the dish’s luxurious character.
- Prep Time: 15 minutes
- Cook Time: 50-55 minutes
- Category: Dinner, Appetizer, Snacks
- Method: Baking
- Cuisine: French
Nutrition
- Serving Size: 8
- Calories: 360
- Sugar: 3 g
- Sodium: 350 mg
- Fat: 20 g
- Saturated Fat: 12 g
- Unsaturated Fat: 8 g
- Trans Fat: 0 g
- Carbohydrates: 36 g
- Fiber: 3 g
- Protein: 10 g
- Cholesterol: 60 mg