Introduction
You’ll love how this crust brings a subtle tang and incredible flakiness to any pie, transforming your baking with a clever use of sourdough discard. It yields a sturdy yet tender base that perfectly complements both sweet and savory fillings. This method is a fantastic way to reduce waste while elevating a classic kitchen staple.
Prep & Cook Time
- Prep Time: 30 minutes
- Cook Time: 30 minutes
- Total Time: 60 minutes
- Servings: 2 crusts (for a double-crust pie or two single pies)
Ingredients
- 2 1/4 cups all-purpose flour
- 2 tablespoons granulated sugar
- 1/2 teaspoon salt
- 16 tablespoons (2 sticks) cold salted butter, cubed
- 1/2 cup sourdough discard
- 1/4 cup to 1/2 cup ice water
Instructions
- In a large bowl, whisk together the all-purpose flour, granulated sugar, and salt.
- Add the cold, cubed butter to the flour mixture. Using a pastry cutter, two forks, or your fingertips, work the butter into the flour until the mixture resembles coarse crumbs with some pea-sized butter pieces remaining.
- Add the sourdough discard to the bowl. Gently mix it in with a fork until just distributed. The mixture will be shaggy and dry.
- Begin adding the ice water, one tablespoon at a time, mixing gently with a fork after each addition. Add only enough water (starting with 1/4 cup) for the dough to begin to clump together when pinched. You may not need the full 1/2 cup.
- Turn the dough out onto a lightly floured surface. Gently knead and press it together into a cohesive ball. Divide the dough into two equal discs.
- Wrap each disc tightly in plastic wrap and refrigerate for at least 1 hour, or up to 2 days, before rolling out and baking according to your pie recipe’s instructions. For a pre-baked (blind-baked) crust, bake at 400°F (200°C) for about 15-18 minutes, or until golden.
Variations
- Savory Herb Crust: Omit the sugar and mix in 1 tablespoon of dried herbs (like thyme, rosemary, or Italian seasoning) with the dry ingredients.
- Sandy Texture: For a more shortbread-like crust, fully incorporate the butter into the flour until it resembles fine sand before adding the discard.
- Galette Style: Use one disc of dough rolled into a large circle, add filling to the center, and fold the edges over for a rustic, free-form tart.
- Cracker Crust: Roll the dough very thin, prick all over with a fork, and bake on a sheet pan until crisp for a base for cheesecakes or icebox pies.
Tips for Success
- Keep everything cold: Ensure your butter is very cold and use ice water. This prevents the butter from melting before baking, which is key for a flaky texture.
- Don’t overwork the dough: Mix just until it comes together. Over-kneading develops gluten and can make the crust tough.
- Chill the dough thoroughly: This step is non-negotiable; it re-solidifies the butter, relaxes the gluten, and makes the dough much easier to roll out without shrinking.
- Use a light hand when rolling: Roll from the center outward, turning the dough occasionally, and use just enough flour to prevent sticking.
Storage & Reheating
Wrap the dough discs tightly in plastic wrap and store in the refrigerator for up to 2 days, or freeze for up to 3 months. Thaw overnight in the fridge before using. Baked pie crust is best eaten the same day but can be kept at room temperature, covered, for 1-2 days. Re-crisp in a 350°F (175°C) oven for 5-10 minutes.
FAQ
Can I use active sourdough starter instead of discard?
Yes, you can use active starter, but the discard provides the characteristic tang without additional leavening activity, which is ideal for a pie crust.
My dough is too sticky. What should I do?
If the dough becomes sticky while mixing, add a small sprinkle of flour (1 tablespoon at a time) until it’s manageable. If it’s sticky after mixing, simply wrap it and chill it; the dough will firm up significantly.
Can I make this dough in a food processor?
Yes. Pulse the dry ingredients and butter until crumbly. Add the discard and pulse a few times. Then, pulse while drizzling in ice water just until the dough begins to clump.
Why is my crust tough?
Toughness is usually caused by over-mixing or over-kneading the dough, which develops too much gluten. Handle the dough as little as possible once the liquid is added.
Do I need to adjust baking time or temperature?
Follow the baking instructions for your specific pie recipe. The sourdough crust may brown slightly faster due to the sugars in the discard, so keep an eye on it.
Can I use unsalted butter?
The recipe specifies salted butter. If you only have unsalted butter, increase the added salt to 1 teaspoon total.
