
Getting a flaky, tender pie crust without wheat flour is one of the trickier challenges in allergy-friendly baking, but this recipe genuinely delivers. A blend of white rice flour, tapioca starch, and potato starch works together to mimic the structure and lightness that gluten normally provides, while xanthan gum holds everything together so the crust doesn't crumble apart when you slice it. Every single ingredient here is naturally free of soy — no shortening, no margarine, no store-bought blends with hidden additives — just real butter, egg, and pantry starches you can easily verify on the label. The apple cider vinegar is a quiet hero in this dough, helping to keep the butter cold and the texture tender rather than tough. Chilling the dough before rolling is non-negotiable, and rolling it between two sheets of parchment makes the whole process far less frustrating since gluten-free dough is more delicate than its wheat counterpart. Any cracks that appear at the edges press back together easily, so don't stress — this crust is more forgiving than it looks. Whether you blind-bake it for a custard filling or load it straight into the oven with fruit, the result is golden, buttery, and genuinely impressive.
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Whisk together the white rice flour, tapioca starch, potato starch, xanthan gum, sugar, and salt in a large mixing bowl until evenly combined.
Add the chilled butter cubes to the flour mixture and cut them in with a pastry cutter or fork until the mixture resembles coarse crumbs with some pea-sized butter pieces remaining — do not work the butter in completely.
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