Strawberry Pop Tart Slab Pie

A slab pie is my go-to when I want the payoff of a pop tart—jammy fruit, flaky pastry, sweet icing—without fussing with individual pastries. This strawberry version bakes on a single sheet pan, slices into neat squares, and is easy to portion for a weekend brunch spread or a low-effort dessert you can grab from the fridge.

It’s also a practical way to use fresh strawberries that are ripe and fragrant but a little too soft for snacking. The filling thickens with cornstarch so it stays sliceable, and the egg wash gives you a glossy, crisp top crust. If you like the idea of hand pies but want something simpler, this is the “one big bake” approach. (If you’re in the mood for a savory version, my savory breakfast pop tarts hit the same portable vibe.)

Why This Recipe Works

• Sheet-pan format, less handling: You roll two rectangles, sandwich the filling, and bake—no crimping dozens of edges like you would with individual pop tarts.
• Cornstarch keeps the strawberry layer sliceable: It thickens the fruit juices as they bubble, so you get a jammy center instead of a runny puddle.
• Cold butter = flaky texture: Cutting cold, cubed butter into the flour leaves small pieces that melt in the oven and create crisp, layered bite.
• Egg wash does real work: It helps the top crust brown evenly and sets a slightly glossy finish that holds up under icing.
• Icing is optional but quick: A simple powdered sugar + milk drizzle adds the classic pop-tart finish without requiring a separate frosting step.
• Good timing for real life: The only built-in pause is a 30-minute chill for the dough—use that time to slice strawberries and clear the counter.

Quick Kitchen Note

When I’m making a fruit dessert that needs to travel or sit out for a bit, I’d rather bring a slab pie than a traditional round pie—squares are easier to serve, and you can bake it on a standard baking sheet without special pans.

What It Tastes Like

This bakes up like a grown-up strawberry pop tart: crisp, buttery crust; a sweet-tart strawberry filling that smells like vanilla; and a clean powdered-sugar icing that sets into a light glaze. The edges get the most crunch, while the center stays tender with a thick, jammy layer that doesn’t ooze everywhere when you cut it.

Ingredients

This recipe is built around a simple all-butter crust and a fresh strawberry filling thickened with cornstarch. Keep the butter cold (that’s your flakiness), and slice the strawberries so they cook down evenly. If you want a slightly looser glaze, add a touch more milk; if you want it thicker, use less.

• 2 cups all-purpose flour
• 1 teaspoon salt
• 1 tablespoon granulated sugar
• 1 cup unsalted butter, cold and cubed
• 6-8 tablespoons ice water
• 2 cups fresh strawberries, hulled and sliced
• 3/4 cup granulated sugar
• 1 tablespoon cornstarch
• 1 teaspoon vanilla extract
• 1 egg, beaten (for egg wash)
• Powdered sugar (for icing)
• Milk (for icing)

Step-by-Step Instructions

1. Preheat and set up. Heat the oven to 375°F (190°C). Prepare a baking sheet (this is a slab pie—no pie dish needed).
2. Mix the dry ingredients. In a large bowl, stir together the flour, salt, and 1 tablespoon granulated sugar until evenly combined.
3. Cut in the butter. Add the cold, cubed butter and cut it into the flour mixture until it looks like coarse crumbs. You’re aiming for a sandy mixture with some small butter pieces still visible—those bits create flake.
4. Bring the dough together and chill. Add ice water gradually (6–8 tablespoons), stirring just until the dough holds together when you press it. Stop as soon as it comes together; overmixing makes the crust tougher. Chill the dough for 30 minutes so it’s easier to roll and keeps the butter cold.
5. Roll the bottom crust. Roll out one portion of dough into a rectangle sized to fit your baking sheet. Transfer it to the baking sheet and lay it flat—if it tears, press it back together (cold dough is forgiving).
6. Make the strawberry filling. In a bowl, combine sliced strawberries, 3/4 cup granulated sugar, cornstarch, and vanilla extract. Stir until the strawberries look glossy and the cornstarch isn’t dry or clumpy. Spread the filling over the bottom crust in an even layer, leaving a small border around the edges for sealing.
7. Top, seal, vent, and egg wash. Roll out the second portion of dough into another rectangle and place it over the filling. Seal the edges well (this keeps the bubbling filling contained). Cut a few vents in the top crust so steam can escape. Brush the top with beaten egg for a golden finish.
8. Bake. Bake for 25–30 minutes, until the top is golden brown and you can see the filling bubbling through the vents. If the top looks pale at 25 minutes, give it a few more minutes—color equals flavor and crispness here.
9. Cool and ice. Let the slab pie cool before icing (warm crust will melt the glaze and make it disappear). Mix powdered sugar with milk until you have a drizzleable icing, then drizzle over the top.
10. Slice and serve. Once the icing settles, slice into squares. For clean edges, use a sharp knife and wipe it between cuts if the filling sticks.

Common Mistakes to Avoid

• Using softened butter in the crust: Warm butter blends too fully into the flour, which reduces flake. Fix: keep butter cold and work quickly; chill the dough for the full 30 minutes.
• Adding all the water at once: Too much water makes sticky dough and a tougher crust. Fix: add ice water gradually and stop as soon as the dough holds together.
• Skipping vents in the top crust: Steam needs a way out; without vents, the top can puff and split at the edges. Fix: cut a few small vents before baking.
• Not sealing the edges well: Strawberry filling will find weak spots and leak onto the pan. Fix: press the edges firmly all the way around before baking.
• Icing while the slab is still warm: The glaze will melt and turn translucent. Fix: cool first, then drizzle for a visible, set finish.

Variations and Swaps

If you want to change it without breaking the method, keep the crust process the same and make small, sensible tweaks:

• Skip the icing: Serve plain for a more pastry-forward slice; you’ll taste the butter and vanilla more clearly.
• Adjust icing thickness: Use more milk for a thin drizzle or less milk for a thicker, more opaque glaze.
• Try a different fruit filling style: If you enjoy fruit slab pies, my blueberry tart with Earl Grey tea leans more aromatic and less candy-sweet, while the no-bake options like no-bake blueberry chia seed pie are useful when you don’t want to turn on the oven.

Serving Suggestions

• Slice into squares and serve slightly cool so the strawberry layer stays neat.
• For a brunch-style spread, pair with coffee or tea and keep the squares small—this one is rich from the all-butter crust.
• If you’re planning a dessert lineup, it plays nicely next to something citrusy; I often balance it with a slice of lemon meringue pie or a chilled no-bake lemon pie for contrast.

Storage and Meal Prep

• Cool completely before storing so the crust stays crisp and the icing doesn’t get tacky.
• Refrigerator: Store slices covered in the fridge. The filling sets up even more as it chills, which makes this especially good for make-ahead serving.
• Serving after chilling: Let slices sit a few minutes at room temperature if you want the crust less firm; serve cold if you want the cleanest, most stable squares.
• Make-ahead rhythm: The dough’s 30-minute chill is a great built-in prep window—use it to prep your filling and wash the bowl and board so you’re not cleaning after the bake.

FAQs

Can I make the dough ahead?
Yes—at minimum, it needs the 30-minute chill. If you chill longer, let it sit briefly at room temperature so it rolls without cracking.

Why did my filling leak onto the baking sheet?
Usually it’s an edge seal issue or the filling was spread too close to the border. Leave a small margin and press the edges firmly all the way around.

How do I know it’s baked through?
Look for a golden brown top crust and bubbling filling at the vents. Bubbling is your cue that the thickener has activated.

My icing disappeared—what happened?
The slab was likely still warm. Cool fully before drizzling so the glaze sits on top and sets.

Final Tip

When you roll the rectangles, don’t chase perfection—aim for an even thickness so it bakes uniformly. If the dough softens while you work, pause and chill it briefly; cold dough is the easiest way to keep the crust flaky and the edges tidy.

Conclusion

If you want to see how other cooks approach the same pop-tart slab pie idea, compare techniques in this Food52 strawberry slab pie, this playful giant strawberry pop tart, and this classic strawberry pop tart slab pie write-up—then come back to the version that fits your kitchen pace.

Strawberry Slab Pie

A simple and delightful slab pie featuring a flaky crust and a sweet-tart strawberry filling, perfect for brunch or dessert.

Print Recipe Pin Recipe

Prep Time 30 minutes mins

Cook Time 30 minutes mins

Total Time 1 hour hr

Servings: 12 slices

Course: Brunch, Dessert

Cuisine: American

Calories: 250

Ingredients Method Notes

Ingredients

  

For the Pie Crust

• 2 cups all-purpose flour For the crust.
• 1 teaspoon salt
• 1 tablespoon granulated sugar For sweetness in the crust.
• 1 cup unsalted butter, cold and cubed Keep the butter cold for flakiness.
• 6-8 tablespoons ice water Add gradually to avoid sticky dough.

For the Strawberry Filling

• 2 cups fresh strawberries, hulled and sliced Can be adjusted based on preference.
• 3/4 cup granulated sugar Adjust based on sweetness preference.
• 1 tablespoon cornstarch To thicken the filling.
• 1 teaspoon vanilla extract
• 1 egg beaten (for egg wash) For a glossy crust.
• Powdered sugar for icing Optional icing.
• Milk for icing Adjust based on desired icing thickness.

Method

 

Preparation

1. Preheat the oven to 375°F (190°C) and prepare a baking sheet.
2. In a large bowl, stir together the flour, salt, and 1 tablespoon of granulated sugar.
3. Cut cold, cubed butter into the flour mixture until it resembles coarse crumbs.
4. Gradually add ice water until the dough holds together; then chill for 30 minutes.

Assembly

1. Roll out one portion of dough into a rectangle for the bottom crust and transfer it to the baking sheet.
2. Mix sliced strawberries, 3/4 cup sugar, cornstarch, and vanilla extract, then spread this filling over the bottom crust.
3. Roll out the second portion of dough and place it over the filling. Seal the edges well and cut vents on the top.
4. Brush the top with beaten egg.

Baking

1. Bake for 25–30 minutes until the top is golden brown and the filling bubbles through the vents.

Cooling and Icing

1. Let the slab pie cool before drizzling with icing made from powdered sugar and milk.
2. Slice into squares and serve.

Notes

For best results, keep the butter cold, avoid overmixing, and be sure to properly seal the edges to prevent leaks. Drizzle the icing after cooling to maintain its texture.