0.25tspflaky sea saltsuch as Maldon, for finishing
Instructions
Make the Whole Wheat Crust
In a large bowl, whisk together the whole wheat flour, all-purpose flour, salt, and thyme. Add the cold cubed butter and use your fingertips or a pastry cutter to work it into the flour until the mixture resembles coarse, pea-sized crumbs with some larger flat butter pieces — this is what creates flakiness.
Add ice cold water one tablespoon at a time, mixing with a fork or your hands until the dough just comes together. It should hold when pressed but not feel wet or sticky. Shape into a disk, wrap tightly in plastic wrap, and refrigerate for at least 30 minutes (or up to 3 days).
Preheat oven to 400°F (200°C). On a lightly floured surface, roll the chilled dough into a rough 13-inch circle about 1/8-inch thick. Carefully transfer to a 10-inch tart pan with a removable bottom (or a 9-inch pie dish). Press into the edges and trim any overhang. Prick the base all over with a fork.
Line the crust with parchment paper and fill with pie weights or dried beans. Blind bake for 15 minutes. Remove the weights and parchment and bake for another 5 minutes until the base is just lightly golden. Remove from oven and let cool slightly. Reduce oven temperature to 375°F (190°C).
Grill the Vegetables
Preheat a grill or grill pan to high heat. Brush all vegetable pieces generously with olive oil on both sides and season with kosher salt and black pepper.
Grill the vegetables in batches, making sure not to crowd: zucchini and yellow squash 3-4 minutes per side; eggplant 4-5 minutes per side; bell peppers 4-5 minutes per side skin-side down until charred, then 2 minutes on the other side. You want clear grill marks and tender but not mushy texture.
Transfer grilled vegetables to a cutting board. Once cool enough to handle, cut into bite-sized pieces or slice into strips, about 1-2 inches each. Set aside. (The skins on the bell peppers can be peeled off if desired once slightly cooled.)
Make the Goat Cheese Filling
In a medium bowl, combine the room-temperature goat cheese, cream cheese, egg, minced garlic, lemon zest, thyme, salt, and pepper. Beat with a fork or electric hand mixer until smooth, creamy, and well combined. Taste and adjust seasoning if needed.
Assemble and Bake the Tart
Spread the goat cheese filling evenly over the blind-baked tart shell, smoothing all the way to the edges with an offset spatula or the back of a spoon.
Arrange the grilled vegetables over the goat cheese filling. Work in an overlapping, slightly layered pattern — vary the colors and shapes for a beautiful rustic presentation. Press them gently into the filling.
Bake the assembled tart at 375°F for 22-25 minutes, until the filling is set, the edges of the crust are deep golden, and the vegetables on top have caramelized slightly further.
Remove from the oven and let cool for 10 minutes before slicing. Drizzle generously with extra-virgin olive oil, scatter fresh thyme sprigs and parsley over the top, and finish with a pinch of flaky sea salt. Serve warm or at room temperature.
Notes
Make-ahead tip: Grill vegetables and prepare dough up to 2 days in advance, stored separately in the refrigerator. Assemble and bake day-of for best results.For extra richness: Add 2 tablespoons of heavy cream to the goat cheese filling before spreading.Soggy bottom prevention: Blind baking the crust is essential. For extra insurance, brush the blind-baked crust with a thin layer of beaten egg white and return to the oven for 2 minutes before adding the filling — this creates a moisture barrier.Storage: Store covered in the refrigerator for up to 3 days. Reheat at 325°F for 8-10 minutes. Excellent served at room temperature.