Gluten-Free Dutch Apple Pie with Streusel Topping

Dough

• 3 tbsp natural shortening (such as Spectrum Organic All Vegetable Shortening), cut in small cubes
• 4 tbsp dairy-free, soy-free margarine (such as Earth Balance buttery sticks), cut into small cubes
• 1/3 cup (80 mL) sweet white rice flour
• 1/3 cup (80 mL) gluten-free oat flour
• 2/3 cup (160 mL) sorghum flour
• 1/2 cup (120 mL) tapioca flour
• 3/4 tsp xanthan gum
• 1/2 tsp kosher salt
• 1/2 tsp gluten-free baking powder
• 2 tsp granulated sugar
• 3-5 tbsp ice water

Streusel Topping

• 1/2 cup (120 mL) gluten-free corn flakes (such as Erewhon brand)
• 1/2 cup (120 mL) gluten-free flour blend (such as King Arthur gluten-free multi-purpose flour)
• 1/3 cup (80 mL) light brown sugar, lightly packed
• 1/2 cup (120 mL) gluten-free rolled oats
• 1/2 tsp kosher salt
• 1/2 tsp ground cinnamon
• 5 tbsp dairy-free, soy-free margarine (such as Earth Balance buttery sticks), cut into cubes and chilled

Filling

• 4 1/2 cups Granny Smith apples (approximately 4 apples), sliced 1/4-inch thick
• 4 1/2 cups Braeburn apples (approximately 3 apples), sliced 1/4-inch thick
• 2/3 cups (160 mL) granulated sugar
• 1 tbsp cornstarch
• 1/4 tsp kosher salt
• 1/2 tsp ground cinnamon
• 1 tbsp lemon juice
• 1/3 cup (80 mL) golden raisins, optional