Brown Butter Apple Hazelnut Tart

Combine flour and salt in a bowl. Cut in cold butter until the mixture resembles coarse crumbs with some pea-sized pieces remaining.

Whisk egg yolk with 2 tablespoons cold water, then drizzle over the flour mixture. Mix gently with a fork until the dough just comes together. Add remaining water a teaspoon at a time only if needed.

Turn the dough onto a lightly floured surface, pat into a disc, wrap in plastic, and refrigerate for at least 1 hour. The rest is not wasted time — it relaxes the gluten and keeps your crust tender.

In a light-colored saucepan over medium heat, melt the 4 tablespoons butter while swirling occasionally. Continue cooking until the milk solids turn golden amber and the butter smells nutty and caramelized, about 5-7 minutes. Watch it closely — the difference between browned and burned is seconds.

Immediately pour the brown butter into a heatproof bowl and let it cool to room temperature. It will continue to scent the kitchen beautifully.

Peel, core, and slice the apples about 1/4-inch thick. Toss with white sugar, brown sugar, cinnamon, and salt. Let them macerate for 15 minutes while you roll out the dough.

Preheat your oven to 375°F (190°C). On a lightly floured surface, roll the chilled dough into a 12-inch circle about 1/8-inch thick. Drape it over your rolling pin and transfer to a 9-inch tart pan with removable bottom.

Gently press the dough into the edges, letting the excess hang over. Prick the bottom all over with a fork. Line with parchment paper and fill with pie weights or dried beans.

Bake for 20 minutes until the edges are set. Remove the weights and paper, then bake another 5-8 minutes until the bottom looks dry but not fully golden. The shell should reach at least 350°F in the center for food-safe preparation. Set aside to cool slightly.

Drain any excess liquid from the macerated apples. Fan the apple slices in overlapping concentric circles over the warm tart shell, leaving a 1/2-inch border.

Whisk together the cooled brown butter, heavy cream, eggs, vanilla extract, and 2 tablespoons white sugar. Pour this custard gently over the apples, letting it seep between the slices.

Bake at 375°F for 25-30 minutes until the custard is set with a slight wobble in the center and the edges are puffed and golden. Use an instant-read thermometer to confirm the center reaches 160°F (71°C) for food-safe egg preparation.

While the tart bakes, toast the hazelnuts in a dry skillet over medium heat, tossing frequently, until golden and fragrant. Alternatively, spread on a baking sheet and toast at 350°F for 8-10 minutes. Let cool completely.

Once the tart is warm but no longer hot, scatter the toasted hazelnuts over the top. The residual warmth will slightly soften them — this is a feature, not a bug.