Sourdough Discard Apple Pie Recipe: Zero-Waste Flavor With Buttery Lattice Top

This sourdough discard apple pie transforms kitchen scraps into a golden, flaky masterpiece with a lattice top that crackles at every bite. 🌟 The secret lies in the discard's natural tang, which brightens the apples while adding depth to the buttery crust—no waste, all flavor.

What starts as a simple dough becomes a showstopping dessert with just a few folds and a sharp knife.

Beginner-friendly yet impressive, this recipe uses just 5 ingredients for the crust and lets the sourdough do the work. The filling balances tart apples with cinnamon and brown sugar, while the lattice crust creates a crispy, airy finish.

Baking at 375°F ensures a tender bottom and perfectly caramelized edges—no soggy crusts here.

What you’ll end up with is a pie that smells like autumn in your kitchen, with a lattice top that adds visual appeal and crunch. The sourdough discard adds a subtle tang, cutting through the sweetness of the apples while keeping the crust light and flavorful.

It’s the kind of dessert that makes guests ask for the recipe—and the secret to its success is right in your fridge.

Perfect for holidays, potlucks, or a cozy weeknight treat, this pie scales easily and keeps well for days. The lattice technique might look intimidating, but with a few simple cuts, you’ll achieve professional results. Let’s get baking!

Ingredients for sourdough discard apple pie

Five simple ingredients for the crust, six perfect apples, and spices you already own.

The sourdough discard is the star—look for unfed discard from your fridge, not the stiff kind from the bottom of the jar. If yours is too wet, add 1-2 tbsp flour; if too dry, splash in 1 tbsp water. For the butter, Land O'Lakes or Plugrá work best—they hold their shape when chilled. The apples? Granny Smith or Honeycrisp hold up perfectly, but any mix of tart and sweet works. Peel them if you prefer a smoother texture, or leave skins on for extra fiber. The cinnamon should smell vibrant—if it's stale, toast your own for 2 minutes in a dry pan to wake up the flavor.

No sourdough discard? Substitute with 1.5 cups plain yogurt or buttermilk—it won't be identical, but close. Short on butter? Coconut oil or lard works in a pinch, though texture changes. The apples can be swapped for pears or even berries (reduce sugar by 2 tbsp). If you're making this ahead, cook the filling first and refrigerate it—it thickens as it sits. For the lattice, use a sharp knife and keep strips even; if they tear, just overlap them slightly. The egg wash can be skipped if you're in a hurry, but trust me on the vanilla extract—it makes the whole pie sing.

The crust keeps best in the fridge for 2 days before baking, but the filling can be prepped 1 day ahead—store it covered in the fridge. Once baked, this pie stays fresh for 4 days at room temperature, or 3 months frozen. For freezing, slice it first and wrap tightly with parchment between layers. Reheat slices at 350°F for 10 minutes to restore that golden crunch. The lattice? Even better the next day once fully cooled—it crisps up beautifully.

Step-by-step instructions for sourdough discard apple pie

Here's how to transform sourdough discard into a flaky, buttery lattice-topped pie with perfect spiced apples.

In a large bowl, combine the 1.5 cups sourdough discard, 3 cups all-purpose flour, 0.5 tsp salt, and 0.5 cup cold unsalted butter (cubed). Using your fingers or a pastry cutter, work the butter into the dough until it resembles coarse crumbs with pea-sized butter pieces remaining.

Gradually add 2-3 tablespoons ice water, 1 tablespoon at a time, mixing gently until the dough just comes together. Avoid overworking—this dough needs to stay cold. Divide the dough into two equal discs, wrap each in plastic wrap, and refrigerate for at least 1 hour (or up to 24 hours). The cold rest develops flavor and makes rolling easier.

While the dough rests, peel, core, and slice the 6 medium apples into ¼-inch thick slices. In a large bowl, toss the apples with 0.75 cup granulated sugar, 0.5 cup packed light brown sugar, 2 tsp ground cinnamon, 1 tsp vanilla extract, and 1 tbsp lemon juice. Let the mixture sit for 15 minutes—this allows the juices to release and the flavors to meld.

Drain any excess liquid from the apple mixture (about 2-3 tablespoons) using a fine-mesh sieve. This prevents a soggy pie crust. The filling should be moist but not dripping. Keep it at room temperature while you work with the dough.

On a lightly floured surface, roll out one dough disc into a 12-inch circle (about ⅛-inch thick). Transfer it to a 9-inch pie dish, gently pressing it into the bottom and up the sides. Trim any excess dough hanging over the edge, leaving about ½-inch overhang. Set aside.

Roll out the second dough disc into a 10-inch circle for the lattice top. Using a sharp knife or pizza cutter, cut the dough into ½-inch wide strips, alternating between long and short strips (like a basketweave pattern). This creates a decorative top that allows steam to escape while keeping the apples tender.

Arrange the apple filling into the prepared pie crust, mounding it slightly in the center. Brush the edges of the bottom crust with 1 large egg (beaten) to create a seal. Drape the lattice strips over the top, pressing gently to adhere. Brush the lattice with the remaining egg wash for a golden finish.

Preheat your oven to 375°F. Place the pie on a baking sheet (to catch any drips) and bake for 45-50 minutes, until the crust is deep golden brown and the filling is bubbling. If the lattice browns too quickly, tent loosely with foil after 30 minutes to prevent burning.

Remove the pie from the oven and let it cool for 2 hours at room temperature. This resting period allows the filling to set and the juices to redistribute, ensuring clean slices. Serve warm or at room temperature with vanilla ice cream or whipped cream for the ultimate experience.

The lattice top should be crisp, the crust flaky, and the apples perfectly spiced—no soggy bottoms in sight. Store leftovers in the refrigerator for up to 3 days or freeze for 2 months for future enjoyment.

Best sauces and condiments for sourdough discard apple pie

Caramelized Apple Sauce

For a rich, velvety alternative to traditional filling, try a caramelized apple sauce. Cook 2 cups diced apples with ¼ cup brown sugar, 1 tsp cinnamon, and 1 tbsp lemon juice in a saucepan over medium heat for 15 minutes until thickened.

Spread this sauce over the crust before adding lattice strips—it adds a glossy finish and deeper flavor. 🍎

Brown Butter Glaze

Brown ½ cup unsalted butter in a skillet until golden and nutty, then whisk in 1 tbsp honey and 1 tsp vanilla extract. Brush this glaze over the lattice top just before baking for a glossy, aromatic finish.

The nutty depth complements the apples beautifully and adds a restaurant-worthy touch.

Spiced Whipped Cream

Whip 1 cup heavy cream with 2 tbsp powdered sugar, ½ tsp cinnamon, and ¼ tsp nutmeg until soft peaks form. Serve alongside slices of pie for a creamy, aromatic contrast. For extra flair, dust with toasted cinnamon sugar or a sprinkle of crushed graham crackers.

Honey-Lemon Drizzle

Mix 2 tbsp honey, 1 tbsp lemon juice, and a pinch of salt. Drizzle this bright, tangy sauce over warm slices of pie right before serving. The acidity cuts through the richness, balancing the sweetness of the apples and adding a fresh finish. 💛

Vanilla Bean Ice Cream

Upgrade your serving game with homemade vanilla ice cream infused with 1 split vanilla bean. The floral notes enhance the pie’s warmth, while the cold cream contrasts perfectly with the spiced apples. For a shortcut, use high-quality store-bought vanilla ice cream like Ben & Jerry’s or Häagen-Dazs.

Crème Fraîche Swirl

Stir ¼ cup crème fraîche into the apple filling before baking for a tangy, creamy swirl throughout each slice. The cultured richness elevates the pie without overpowering the apples. Top with a dollop of crème fraîche and a sprinkle of toasted walnuts for added texture and depth.

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