01 -
In a large bowl, whisk together flour, granulated sugar, and salt. Cut in the cold cubed butter using a pastry cutter or your fingertips until the mixture resembles coarse crumbs. Gradually add ice water, one tablespoon at a time, mixing gently until the dough just comes together. Shape the dough into a flat disk, wrap in plastic, and refrigerate for at least 30 minutes.
02 -
In a separate bowl, toss the sliced Honeycrisp apples with granulated sugar, flour, cinnamon, honey, and lemon juice until the apples are evenly coated and glossy.
03 -
Lightly flour a work surface. Roll the chilled dough into a roughly 12-inch circle, about 1/8 inch thick. Carefully transfer the dough onto a parchment-lined baking sheet.
04 -
Pile the apple filling in the center of the dough, leaving a 2-inch border around the edges. Gently fold the edges of the dough over the apples, pleating as you go and leaving the center exposed. Brush the crust with the beaten egg for a glossy finish.
05 -
Bake in a preheated 400°F oven for 35 to 40 minutes, or until the crust turns golden and the apples are tender.
06 -
Allow to cool slightly. Dust the galette with powdered sugar. Warm the honey and drizzle generously over the apples before serving for added sheen and flavor.