Sourdough Discard Pop Tarts Recipe (Homemade & Flaky)

Introduction

There’s something special about baking at home—the warm oven, buttery aroma, and the joy of creating something from scratch. These sourdough discard pop tarts are a cozy, nostalgic treat that turns simple ingredients into bakery-style pastries.

They bake up golden and crisp with flaky layers and a sweet filling of jam, chocolate, or peanut butter. The slight tang from sourdough discard adds depth and makes every bite more interesting.

Best of all, this recipe helps you use leftover sourdough discard instead of wasting it, turning it into something truly delicious.

Why You’ll Love This Recipe

• Uses sourdough discard (no waste)
• Buttery, flaky homemade pastry
• Easy to customize with fillings
• Perfect for breakfast, snacks, or dessert
• Better than store-bought pop tarts

Ingredients

For the Dough

• 1 cup (240 g) sourdough discard
• 2 cups (250 g) all-purpose flour
• 1 cup (230 g) cold unsalted butter, cubed
• 2 tablespoons sugar
• 1 teaspoon salt
• 1 large egg (for sealing + brushing)
• 2–3 tablespoons cold water (as needed)

For the Filling

• ½ cup thick fruit jam (strawberry, blueberry, raspberry, etc.)

Optional fillings:

• Chocolate spread
• Peanut butter
• Apple cinnamon filling

For the Glaze

• 1 cup (120 g) powdered sugar
• 1–2 tablespoons milk
• ½ teaspoon vanilla extract
• Sprinkles or crushed nuts (optional)

Instructions

1. Make the Dough

In a large bowl, mix flour, sugar, and salt. Add cold butter and cut it into the flour using your fingers or a pastry cutter until the mixture looks like coarse crumbs.

Add sourdough discard and mix gently. Add cold water one tablespoon at a time until the dough comes together.

Do not overmix.

Wrap the dough and chill for 30–45 minutes.

2. Prepare the Filling

If your jam is too runny, heat it with a little cornstarch slurry until thickened. Let it cool before using.

3. Roll the Dough

Divide dough in half. Roll one portion to about ⅛-inch thickness.

Cut into rectangles (about 3 × 4 inches).

4. Fill and Seal

Place half the rectangles on a lined baking tray.

Add 1 tablespoon filling in the center of each piece.

Brush edges with beaten egg. Place remaining dough pieces on top and press edges with a fork to seal.

5. Chill Again

Refrigerate assembled pop tarts for 15 minutes while preheating oven to 375°F (190°C).

6. Bake

Brush tops with egg wash.

Bake for 20–25 minutes, or until golden and crisp.

Cool completely on a wire rack.

7. Add Glaze

Mix powdered sugar, milk, and vanilla until smooth.

Drizzle over cooled pop tarts and add sprinkles if desired. Let set for 10–15 minutes.

Serving Ideas

• Breakfast with coffee or tea
• Afternoon sweet snack
• Lunchbox treat
• Weekend baking project

Pro Tips

• Always use cold butter for flaky layers
• Don’t overwork the dough
• Chill before baking for better structure
• Try different fillings like lemon curd or Nutella
• Brush edges well to prevent leaks

Storage

• Room temperature: 2–3 days
• Refrigerator: up to 5 days
• Freezer: up to 2 months

Nutrition (Approx. per pop tart)

• Calories: 310 kcal
• Carbs: 38 g
• Fat: 16 g
• Protein: 5 g
• Sugar: 15 g
• Sodium: 210 mg

Final Thoughts

Sourdough discard pop tarts are a fun way to turn leftover starter into something magical. They’re flaky, buttery, slightly tangy, and fully customizable.

Once you make them at home, store-bought pop tarts won’t hit the same again.