My aunt used to work at a bakery. She now has Celiac, but still continues to bake yummy things.
Her general wheat flour substitute:
1c wheat flour = 2/3c rice flour + 1/3c potato starch or corn starch
Corn starch gets crispier
A recipe for a double pie crust:
Dry ingredients1c white rice flour + more for dusting
1/2c corn starch
1/2 c potato starch
1tbsp granulated sugar
1/2 tsp salt
Wet ingredients1/2c (1 stick) cold butter cut into pieces (or 1/2c solid vegetable shortening)
1 large egg
3 or 4 tbsp cold water
***Note: My aunt leaves out the sugar. Butter and water MUST be cold - crumble into meal consistency***
- Whisk together dry ingredients
- Using a fork or pastry cutter, work cold butter or shortening into flour mixture. Add egg and water. If dough is dry, add more water 1tsp at a time. Stir until a dough forms.
- Divide dough in half, wrap in plastic wrap, and chill for 1hour
- Remove from refrigerator and let sit for 15 minutes