These homemade sourdough discard pop tarts are flaky, sweet, and filled with jam just like the nostalgic toaster pastries from childhood. A perfect way to use sourdough discard for breakfast or dessert.

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If you grew up in the 90s or early 2000s, chances are you remember opening a foil packet of toaster pastries before school. They were sweet, slightly crumbly, and somehow always tasted better warm from the toaster.

👉🏻Try these containers if you want to send them with your kids to school! They are a little smaller so look at the dimensions before you cut your squares.

These homemade sourdough discard pop tarts capture that same nostalgic flavor—but with simple ingredients and real jam filling. The pastry dough is tender and lightly tangy from sourdough discard, creating a homemade version that feels both comforting and a little nostalgic.

Best of all, they’re a great way to use up extra sourdough discard while making a fun breakfast or snack the whole family will love.

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Why You’ll Love This Recipe

• A great way to use sourdough discard
• Nostalgic homemade toaster pastries
• Flaky buttery crust
• Customizable fillings
• Perfect for breakfast or dessert

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Ingredients

Pastry Dough

• 2 Cups All-Purpose Flour
• 1/2 Teaspoon Salt
• 1 Tablespoon Sugar
• 1/2 Cup Cold Butter (Cubed)
• 1/2 Cup Sourdough Discard
• 4 Tablespoons Cold Water (Go one Tbsp at a time)

Filling

• 1/2 Cup Jam Or Preserves (Strawberry, Raspberry, Or Blueberry Work Well)

Egg Wash

• 1 Egg
• 1 Tablespoon Milk

Simple Glaze

• 1 Cup Powdered Sugar
• 1–2 Tablespoons Milk
• 1/2 Teaspoon Vanilla Extract

Optional:

• Sprinkles For A Classic Pop Tart Look

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Instructions

1. Make The Pastry Dough

In A Large Bowl Combine Flour, Salt, And Sugar.

Cut In The Cold Butter Using A Pastry Cutter Or Fork Until The Mixture Looks Like Coarse Crumbs.

Stir In Sourdough Discard And Cold Water One Tablespoon At A Time Until A Dough Forms.

Wrap Dough In Plastic Wrap And Refrigerate For At Least 30 Minutes.

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2. Roll And Cut The Dough

Preheat Oven To 375°F.

Roll The Dough On A Lightly Floured Surface Until About 1/8 Inch Thick.

Cut Into Rectangles Approximately 3×4 Inches.

Place Half Of The Rectangles On A Parchment-Lined Baking Sheet.

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3. Add Filling

Spoon About 1 Tablespoon Filling Into The Center Of Each Rectangle.

Leave A Small Border Around The Edges.

Place The Remaining Dough Rectangles On Top.

Press The Edges With A Fork To Seal.

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4. Add Egg Wash

Whisk Egg And Milk Together.

Brush The Tops Of Each Pastry With Egg Wash.

Use A Fork To Poke A Few Small Holes In The Tops To Allow Steam To Escape.

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5. Bake

Bake For 18–22 Minutes Until Lightly Golden.

Allow The Pop Tarts To Cool Before Adding Glaze.

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6. Add Glaze

Mix Powdered Sugar, Milk, And Vanilla Until Smooth.

Spread Over The Tops Of The Pop Tarts.

Add Sprinkles If Desired For A Classic Nostalgic Look.

Allow Glaze To Set Before Serving.

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🍓Flavor Ideas

These homemade pop tarts are easy to customize.

Popular fillings include:

• Strawberry Jam
• Raspberry Preserves
• Blueberry Jam
• Brown Sugar Cinnamon
• Chocolate Hazelnut Spread

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Storage Tips

Room Temperature

Store In An Airtight Container For Up To 3 Days.

Refrigerator

Store Up To 5 Days.

Freezer

Freeze Fully Baked Pop Tarts For Up To 2 Months.

Reheat In The Toaster Or Oven For Best Texture.

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🍓FAQ Section

Can You Make Pop Tarts With Sourdough Discard?

Yes! Sourdough discard works beautifully in pastry dough. It adds a mild tangy flavor while helping create a tender and flaky crust. Using sourdough discard is also a great way to reduce food waste when maintaining a sourdough starter.

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Do Homemade Pop Tarts Need To Be Refrigerated?

Homemade pop tarts can usually be stored at room temperature for several days if they are filled with jam or preserves. If the filling contains dairy or fresh fruit, refrigeration is recommended.

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Can You Freeze Homemade Pop Tarts?

Yes. Homemade pop tarts freeze very well. Allow them to cool completely, then place them in a freezer-safe container. When ready to eat, warm them in the toaster or oven until heated through.

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Can These Be Toasted Like Store-Bought Pop Tarts?

Absolutely. Once baked and cooled, these sourdough pop tarts can be reheated in the toaster oven or regular oven for a warm nostalgic treat.

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What Is The Best Filling For Homemade Pop Tarts?

Jam and fruit preserves are the easiest filling options. Strawberry, raspberry, and blueberry are classic choices, but chocolate spreads, cinnamon sugar mixtures, or even apple butter work beautifully.

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Why Is My Pop Tart Dough Crumbly?

Pastry dough can become crumbly if there isn’t enough moisture. Adding a small amount of cold water one tablespoon at a time will help bring the dough together while keeping it tender.

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Internal Linking Section

Add a section near the bottom:

More Sourdough Discard Recipes

• Sourdough Pretzel Bites
• Sourdough Discard Cobbler Topping
• Sourdough Biscuits
• Sourdough Raspberry Lemon Scones
• Sourdough Cinnamon Rolls