The Naughty Fork French Onion Tart Recipe

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Are you a fan of French cuisine? Do you enjoy the rich flavors of caramelized onions and flaky pastry? Then you’re in for a treat! In this article, we will be sharing with you the delicious and indulgent recipe for The Naughty Fork’s French Onion Tart. This savory dish is perfect for a cozy night in or as a show-stopping appetizer for your next dinner party. Let’s dive in!


To make The Naughty Fork French Onion Tart, you will need the following ingredients:

For the crust:

– 1 ¼ cups all-purpose flour

– ½ teaspoon salt

– ½ cup unsalted butter, cold and cubed

– 4-6 tablespoons ice water

For the filling:

– 4 large onions, thinly sliced

– 2 tablespoons unsalted butter

– 2 tablespoons olive oil

– 1 teaspoon sugar

– 2 cloves garlic, minced

– 1 teaspoon dried thyme

– Salt and pepper, to taste

– 1 cup Gruyere cheese, grated

– ½ cup Parmesan cheese, grated

– 2 eggs

– ½ cup heavy cream


Now that you have gathered all the necessary ingredients, let’s get cooking!

Step 1: Prepare the crust

In a food processor, combine the flour and salt. Add the cold cubed butter and pulse until the mixture resembles coarse crumbs. Gradually add the ice water, one tablespoon at a time, and pulse until the dough comes together. Shape the dough into a disk, wrap it in plastic wrap, and refrigerate for at least 30 minutes.

Step 2: Caramelize the onions

In a large skillet, heat the butter and olive oil over medium heat. Add the sliced onions and cook, stirring occasionally, until they are golden brown and caramelized. This process can take up to 40 minutes, so be patient! Sprinkle the sugar over the onions and continue cooking for an additional 5 minutes. Stir in the minced garlic, dried thyme, salt, and pepper. Remove from heat and let cool.

Step 3: Preheat the oven and prepare the filling

Preheat your oven to 375°F (190°C). In a medium bowl, whisk together the eggs and heavy cream. Add the grated Gruyere and Parmesan cheese, and mix well. Season with salt and pepper to taste.

Step 4: Assemble and bake

Roll out the chilled dough on a lightly floured surface to fit a 9-inch tart pan. Press the dough into the pan and trim any excess. Prick the bottom with a fork to prevent it from puffing up during baking. Spread the caramelized onions evenly over the crust. Pour the cheese and egg mixture over the onions.

Bake the tart in the preheated oven for 25-30 minutes, or until the crust is golden brown and the filling is set. Remove from the oven and let it cool for a few minutes before serving.


There you have it – The Naughty Fork French Onion Tart! This recipe combines the sweetness of caramelized onions with the richness of cheese and buttery pastry. It’s a delightful dish that will impress your guests or satisfy your cravings for French flavors. So why not give it a try and indulge in this mouthwatering treat? Bon appétit!