Directions
<ol class="no-list-style"><li class="MethodStepper"><h4 class="step-title">Step 1</h4>Begin by preparing your pie dough. In a large bowl, whisk together the flour, salt, and sugar. Add the cold cubed butter and use a pastry cutter or food processor to cut it into the flour until you have pea-sized pieces. This creates pockets of butter that will produce flaky layers when baked.</li><li class="MethodStepper"><h4 class="step-title">Step 2</h4>Combine the ice water and apple cider vinegar (which helps inhibit gluten development for a more tender crust). Drizzle a few tablespoons at a time over the flour mixture, tossing with a fork until the dough begins to come together but isn't wet or sticky. You may not need all the water – you want just enough so the dough holds together when pinched.</li><li class="MethodStepper"><h4 class="step-title">Step 3</h4>Divide the dough into two equal portions and form each into a disk. Wrap in plastic wrap and refrigerate for at least 2 hours or overnight. This crucial resting period allows the gluten to relax and the butter to firm up, ensuring a flakier crust.</li><li class="MethodStepper"><h4 class="step-title">Step 4</h4>When ready to bake, preheat your oven to 200°C (400°F) with a rack in the lower third position and a baking sheet on the rack. For the filling, gently mix the raspberries, sugar, tapioca flour, lemon juice, vanilla extract, almond extract (if using), and salt in a large bowl. Let the mixture sit for 15 minutes to allow the berries to release some juices and the tapioca to begin absorbing moisture.</li><li class="MethodStepper"><h4 class="step-title">Step 5</h4>Roll out one disk of dough on a lightly floured surface to about 30cm (12 inches) in diameter. Transfer to your pie dish, gently pressing it into the corners without stretching. Trim the edges leaving about 2.5cm (1 inch) overhang.</li><li class="MethodStepper"><h4 class="step-title">Step 6</h4>Pour the raspberry filling into the pie shell, mounding it slightly in the center. The tapioca flour works as a thickening agent, absorbing excess moisture from the berries as they cook to prevent a runny filling.</li><li class="MethodStepper"><h4 class="step-title">Step 7</h4>Roll out the second disk of dough. You can either cover the entire pie or create a lattice top. For a lattice, cut the dough into 2.5cm (1 inch) strips and weave them over the filling. Trim and fold the bottom crust over the lattice strips, then crimp or flute the edges to seal.</li><li class="MethodStepper"><h4 class="step-title">Step 8</h4>Brush the top crust with the egg wash, which will give your pie a beautiful golden color and shine. Sprinkle with coarse sugar for a delightful crunch and sparkle. Cut a few small vents in the top if you're using a solid top crust.</li><li class="MethodStepper"><h4 class="step-title">Step 9</h4>Place the pie on the preheated baking sheet (which helps cook the bottom crust evenly) and bake for 20 minutes at 200°C (400°F). Then reduce the temperature to 180°C (350°F) and continue baking for 30-35 minutes more, until the crust is deeply golden and the filling is bubbling visibly through the vents or lattice. If the edges brown too quickly, protect them with a pie shield or strips of aluminum foil.</li><li class="MethodStepper"><h4 class="step-title">Step 10</h4>Allow the pie to cool completely on a wire rack for at least 3 hours before slicing. This cooling period is essential for the filling to set properly – cutting too soon will result in a runny pie. As it cools, the natural pectin in the raspberries along with the tapioca flour will continue to thicken the filling to the perfect consistency.</li><li class="MethodStepper"><h4 class="step-title">Step 11</h4>Serve slices at room temperature with a scoop of vanilla ice cream or lightly whipped cream. Your patience will be rewarded with clean slices that hold their shape, revealing the beautiful ruby filling studded with whole berries. The pie keeps well at room temperature for 2 days or refrigerated for up to 5 days.</li></ol>