Red Mill Gluten Free Flour Pie Crust Recipe: Flaky Layers Without the Shrinkage Struggle

This Red Mill gluten-free flour pie crust delivers the flaky, golden layers you crave without the frustrating shrinkage or crumbling that often plagues gluten-free baking. After years of testing and adjusting ratios, I've perfected a method that uses xanthan gum for structure while keeping the texture tender and crisp.

The secret lies in proper moisture balance and careful handling—no more tough, dry crusts or disappointing results.

The recipe combines Red Mill gluten-free flour with cold butter and ice water to create a dough that behaves like traditional crust while accommodating gluten-free needs. Chilling is critical to prevent spreading, and we'll use a two-step rolling technique to ensure even thickness.

This isn't just another gluten-free substitute—it's a flaky, restaurant-quality crust that holds its shape and delivers that satisfying crunch.

What makes this recipe work is the precise ratio of fat to flour, which prevents the crust from becoming dense or shrinking during baking. The result is a golden-brown crust with layers that separate beautifully, perfect for both sweet pies and savory tarts.

Whether you're making a classic apple pie or a quiche, this crust will elevate your dish without compromising texture.

For those new to gluten-free baking, don't worry—the instructions walk you through every step, from mixing to baking, with troubleshooting tips for common issues. Once you try this method, you'll never settle for store-bought gluten-free crusts again. Let's get started on creating your perfect pie crust.

Ingredients for red mill gluten free flour pie crust

Eight essential ingredients transform Red Mill flour into a flaky, golden crust without shrinkage or crumbling.

The Red Mill Gluten-Free 1-to-1 Baking Flour is non-negotiable—it's specifically formulated to mimic wheat flour's structure. Grab the 16-ounce bag from King Arthur or Bob's Red Mill's website if you can't find it in stores; their consistency is key. For the butter, Plugrá or Land O'Lakes unsalted work best—they hold their shape when chilled. The ice water is crucial: freeze water in ice cube trays ahead of time so you can add cubes directly to the dough. Xanthan gum might be in the baking aisle near flour or the gluten-free section—Bob's Red Mill brand is reliable. If you're using a different gluten-free flour blend, expect to adjust the xanthan gum by half the amount listed on the package.

No xanthan gum? Psyllium husk powder at double the amount works in a pinch, but the texture will be slightly different. Running short on butter? Coconut oil solidified in the fridge mimics fat content, though it won't be quite as flaky. The apple cider vinegar can be swapped for lemon juice at the same amount, but it'll have a brighter flavor. For the egg wash, water + 1 tsp melted butter works just as well if you're avoiding eggs. If your dough feels too dry, add 1 tsp more ice water at a time until it just holds together when pressed. Too sticky? Chill it longer or add 1 tbsp more gluten-free flour. The cornstarch is often overlooked but makes a noticeable difference in tenderness—don't skip it unless you're using a pre-mixed gluten-free flour that already includes it.

This dough must chill for at least 2 hours, ideally overnight, to prevent spreading. Wrap it tightly in plastic and refrigerate—don't freeze, as that makes it too brittle. Once rolled out, use the dough within 30 minutes or it'll relax and stick. Leftover dough scraps can be re-chilled and re-rolled for smaller pies or tarts. The finished crust keeps 3 days in the fridge wrapped in parchment, or 3 months frozen between parchment layers. For best results, bring frozen crusts to room temperature before baking. The egg wash adds shine but isn't mandatory—brush with melted butter for a rich alternative.

Step-by-step instructions for a flaky gluten-free pie crust

Here's how to create a golden, flaky crust that holds its shape—no more soggy or shriveled disasters.

In a large mixing bowl, whisk together the 2.5 cups Red Mill Gluten-Free 1-to-1 Baking Flour, 0.25 tsp Xanthan Gum, 0.5 tsp Diamond Crystal Kosher Salt, 1 tbsp Granulated Sugar, and 1 tbsp Cornstarch. The xanthan gum is non-negotiable—it mimics gluten's binding properties, preventing crumbly results. Sift the mixture lightly to aerate the flour and ensure even distribution of ingredients.

Next, add the 1 tsp Apple Cider Vinegar and stir until fully incorporated. The vinegar helps tenderize the crust by breaking down gluten proteins, even though we're using a gluten-free blend. This step is subtle but makes a noticeable difference in texture. Set the bowl aside while you prepare the cold butter.

Place the 1 cup Unsalted Butter in a separate bowl and cut it into ½-inch cubes using a sharp chef's knife. The butter must be cold—if it softens, chill it for 15 minutes before proceeding. Work quickly now, as warm butter will melt into the flour instead of creating those signature flaky layers.

Using a pastry cutter or your fingers, work the cold butter cubes into the flour mixture until the pieces are roughly pea-sized. You want to avoid overworking the dough—just until the butter is evenly distributed. If the mixture feels too dry, add 1-2 tablespoons of ice water at a time until it begins to clump together when pressed. The dough should hold its shape when gently squeezed but still feel slightly crumbly.

Gradually add the 0.5 cup Ice Water (use actual ice cubes mixed with water to keep it cold) to the flour mixture, 1 tablespoon at a time, mixing gently with a fork or dough scraper. The goal is to bring the dough together without overmixing. Stop when the dough forms a shaggy clump that holds together when pressed—it should still feel cool to the touch.

Turn the dough out onto a lightly floured surface (use the 2 tbsp All-Purpose Flour for dusting) and gently shape it into a 1-inch thick disk. Wrap the dough tightly in the plastic wrap and refrigerate for at least 1 hour, or up to 24 hours. Chilling firms up the butter, preventing it from melting during rolling and ensuring those delicate, flaky layers when baked.

After chilling, remove the dough from the refrigerator and let it sit at room temperature for 5-10 minutes to soften slightly. On a clean, lightly floured surface, roll the dough into a 12-inch circle, about ⅛-inch thick. If the edges start to crack, gently press them back together—this is normal and won't affect the final result.

Carefully transfer the rolled dough to a 9-inch pie dish, trimming any excess dough that hangs over the edges. Press the dough gently into the bottom and up the sides of the dish, using your fingers to create a slight rim. If the dough resists, let it rest for another 5 minutes before trying again. The goal is to create an even, smooth base that will hold its shape during baking.

Preheat your oven to 375°F. Line the chilled dough with parchment paper and fill it with dried beans, pie weights, or rice to prevent puffing. Bake for 15 minutes, then remove the weights and bake for an additional 10-15 minutes until the edges are light golden brown and the crust is firm to the touch. The parchment should come out cleanly, indicating the crust is fully set.

For an optional egg wash, whisk the 1 whole Egg White with a fork and brush it lightly over the crust. Bake for another 3-5 minutes until the crust reaches a deep golden color. Let the crust cool completely before adding your filling—this prevents sogginess and ensures that flaky texture you've worked so hard to achieve. The result? A sturdy, golden crust that holds its shape and complements any filling, whether sweet or savory.

Perfect pairings for red mill gluten free flour pie crust

Sweet Fillings

This crust shines with classic apple pie—use 6 cups mixed apples (Granny Smith + Honeycrisp) tossed with ½ cup sugar, 1 tbsp cinnamon, and 1 tbsp lemon juice. For a rich twist, add ½ cup pecans or a dollop of vanilla ice cream on top. 🍎

Try a peach galette with 4 ripe peaches, 2 tbsp brown sugar, and 1 tsp cardamom—fold the crust edges over the fruit for rustic charm. A lemon meringue pie pairs perfectly: brush the baked crust with pastry cream and top with toasted Swiss meringue.