Onion Pie

Indulge in the savory delight of classic onion pie—where sweet caramelized onions meet rich Gruyere cheese in a buttery, flaky crust. This comforting dish combines the earthy aroma of golden sautéed onions with a creamy filling of heavy cream and eggs, all baked to perfection. A sprinkle of fresh thyme adds a subtle herbal touch, making it an irresistible choice for brunch, lunch, or a hearty side dish. Ready in just over an hour, this recipe is simple yet sophisticated, showcasing everyday ingredients in a deliciously elevated way. Whether served warm or at room temperature, onion pie is a crowd-pleaser that’s perfect for cozy family meals or elegant gatherings alike.

Nutriscore Rating: 51/100

Prep Time:20 mins

Cook Time:45 mins

Total Time:65 mins

Servings: 6

Ingredients

• 3 tablespoons Butter
• 3 large Yellow onions
• 1 teaspoon Salt
• 0.5 teaspoon Ground black pepper
• 2 tablespoons All-purpose flour
• 1 cup Heavy cream
• 2 large Eggs
• 1 cup Grated Gruyere cheese
• 1 Unbaked pie crust
• 1 teaspoon Fresh thyme leaves (optional, for garnish)

Directions

Step 1

Preheat your oven to 375°F (190°C).

Step 2

Peel and thinly slice the onions into uniform rounds.

Step 3

In a large skillet, melt the butter over medium heat. Add the sliced onions and cook, stirring occasionally, for 15-20 minutes until they are golden and caramelized.

Step 4

Season the onions with salt and black pepper. Sprinkle in the flour and stir well to combine. Cook for 2 more minutes to eliminate the raw flour taste.

Step 5

Slowly pour the heavy cream into the skillet, stirring constantly to create a smooth mixture. Heat until just warmed through, then remove from the stove and let it cool slightly.

Step 6

In a mixing bowl, lightly beat the eggs. Gradually whisk the cooled onion mixture into the eggs, followed by half of the grated Gruyere cheese.

Step 7

Place the unbaked pie crust into a 9-inch pie dish, trimming or crimping the edges as desired. Pour the onion filling into the pie crust, spreading it evenly.

Step 8

Sprinkle the remaining Gruyere cheese over the top of the pie.

Step 9

Bake the pie in the preheated oven for 30-35 minutes, or until the filling is set and the top is golden brown.

Step 10

Remove the pie from the oven and let it cool for 10 minutes before slicing. Garnish with fresh thyme leaves, if desired, and serve warm or at room temperature.

Nutrition Facts

Serving size	1066.7 grams (1066.7g)

Amount per serving	% Daily Value*
Calories	2458

Total Fat 193.60g	248%
Saturated Fat 99.90g	500%
Polyunsaturated Fat 1.10g
Cholesterol 810mg	270%
Sodium 3997mg	174%
Total Carbohydrate 106.50g	39%
Dietary Fiber 10.00g	36%
Total Sugars 21.20g
Protein 58.50g	117%

Vitamin D 95IU	477%
Calcium 1310mg	101%
Iron 6mg	33%
Potassium 986mg	21%

*The % Daily Value tells you how much a nutrient in a serving of food contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.

Source of Calories

Fat: 72.5%

Protein: 9.7%

Carbs: 17.7%