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potato flake sourdough pie crust

All-Butter Pie Crust with a Potato Flake Starter

Magen Jones - littletennesseehome.com
Create the perfect all-butter pie crust with a potato flake starter for a flaky, flavorful foundation to any pie. A buttery, flaky pie crust is the foundation of a delicious homemade pie, and this all-butter, sourdough version is no exception. 
Prep Time 20 minutes
Fermentation 1 day
Total Time 1 day 15 minutes
Course Breakfast, Dessert, Main Course
Servings 2 pie crust

Equipment

  • Large bowl
  • Pastry blender, two forks, or food processor
  • measuring cups and spoons
  • Rolling Pin
  • Plastic wrap
  • Bench Scraper (optional)

Ingredients
  

  • 2 1/2 cups 300g unbleached all-purpose flour
  • 1 teaspoon table salt
  • 16 tablespoons 227g unsalted butter, cold*
  • 1/2 cup-3/4 cup cold potato flake sourdough starter discard if it is not cold, add ice cubes to chill before using

Instructions
 

  • Dice the cold butter into small cubes or thin slices. Place in the freezer for 5-10 minutes to help keep it cold throughout the duration of mixing the dough.
  • In a large mixing bowl, whisk together the flour and salt. This ensures the salt is evenly distributed, which helps create a consistent dough.
  • Add cold butter to the flour mixture and use a pastry blender or two forks, to cut it into the flour. The goal is to create a crumbly texture with some pea-sized pieces of butter still visible. These small butter pockets will melt during baking, creating a flaky crust.
  • Drizzle in the cold sourdough discard a little at a time, tossing the mixture with a fork or your hands. Continue adding the discard until the dough begins to come together. Grab a handful—if it holds together easily without crumbling, it’s ready. If dry patches remain, add a bit more starter until fully combined.
  • Using your hands, quickly gather the dough into a dough ball and divide it in half.
  • Shape each half into a disk and wrap it tightly in a piece of plastic wrap. Chilling the dough for 24 hours to allow for fermentation. If needed right away, chill for at least 30 minutes.
  • If chilled longer than 30 minutes, let it sit at room temperature for 10–15 minutes before rolling.
  • Lightly flour your work surface and rolling pin. Roll the dough out to about 1/8-inch thick, turning occasionally to prevent sticking, adding more flour if needed. If cracks form, gently press them back together.
  • Transfer the rolled-out dough to a pie plate, trim the edges, and fill with your chosen pie filling. Follow your recipe’s instructions for blind baking or baking with filling.

Notes

*If you use salted butter, reduce the salt to 1/2 teaspoon.
An easy way to transfer your pie dough is to gently roll the dough up around your rolling pin, ensure that it is dusted with flour to prevent sticking.
Keep Everything Cold: Cold butter and starter help create flakiness. If the dough starts to warm up while rolling, place it in the fridge for 10 minutes.
Don’t Overwork the Dough: Too much mixing develops too much gluten, making the crust tough instead of tender.
Use a Gentle Touch: When rolling, start from the center and work outward in even strokes.
Blind Baking? Use Pie Weights: To keep the crust from puffing up when pre-baking, use parchment paper and pie weights or dried beans.
Freeze for Later: Wrapped tightly and placed in a freezer bag, this dough can be frozen for up to 2 months. Thaw overnight in the refrigerator before rolling.