01 -
In a large bowl, combine 1 1/2 cups all-purpose flour, 1/2 cup very cold unsalted butter (cubed), and 1/4 teaspoon sea salt. Gradually add 1/4 cup ice water (plus 1-2 tablespoons more if needed) until a cohesive dough forms. Gently gather into a disc.
02 -
Wrap the dough disc tightly in plastic wrap and refrigerate for at least 30 minutes. This chilling step is crucial for developing a tender, flaky crust for your Savory Onion & Herb Tart with Creamy Cheese Filling.
03 -
In a large skillet, heat 2 tablespoons olive oil over medium-low heat. Add 3 large yellow onions (thinly sliced), 1 tablespoon fresh thyme, 1 teaspoon fresh rosemary, and 2 cloves minced garlic. Cook slowly for 25-30 minutes, stirring occasionally, until deeply golden and sweet.
04 -
Preheat oven to 375°F. Roll out the chilled dough and fit it into a 9-inch tart pan. Prick the bottom with a fork, line with parchment paper, and fill with pie weights. Bake for 15 minutes, then remove weights and parchment, and bake for another 5-7 minutes until lightly golden.
05 -
In a large bowl, whisk together 3 large eggs, 1 1/2 cups heavy cream, 1/4 teaspoon freshly grated nutmeg, 1/2 teaspoon black pepper, and 1/2 teaspoon sea salt. Stir in 3/4 cup shredded Gruyère cheese and 4 ounces crumbled soft goat cheese until well combined.
06 -
Spread the caramelized onions evenly into the blind-baked crust. Pour the creamy cheese filling over the onions. Bake the Savory Onion & Herb Tart with Creamy Cheese Filling at 375°F for 30-35 minutes, or until the center is set and the top is golden brown.
07 -
Let the tart cool on a wire rack for at least 15 minutes before slicing and serving. This allows the filling to fully set, ensuring the perfect texture for your Savory Onion & Herb Tart with Creamy Cheese Filling.