Name: Raspberry Slab Pie Recipe
Prep time: 20 min
Cook time: 40 min
Total time: PT-494255H5M35S
Cuisine: American
Ingredients: 1 ½ cups (215g) all-purpose flour; 3 tbsp (40g) granulated sugar; ½ tsp salt; ½ cup plus 1 tbsp (125g) cold unsalted butter, cut into small pieces; 4-5 tbsp (60-75ml) cold water; 2 cups (8oz/227g) fresh or frozen raspberries; ⅓ cup (65g) granulated sugar; 2 tsp (10ml) freshly squeezed lemon juice; 2 tsp (6g) all-purpose flour; 1 egg, well beaten; 2 tsp coarse sugar (for sprinkling)

Jump to Recipe· 4.2 from 4 reviews

If you are looking for a dessert that perfectly balances tartness, sweetness, and a buttery crust, then this Raspberry Slab Pie Recipe is going to become your new obsession. Imagine biting into a warm, golden-brown crust that cradles a luscious, thickened raspberry filling bursting with fresh berry flavor and a hint of lemon brightness. This slab pie is not only stunning enough to share at any gathering but also straightforward enough to whip up on a cozy weekend at home. Trust me, once you try this Raspberry Slab Pie Recipe, it will quickly become a go-to treat for family dinners, picnics, or just whenever you want to treat yourself.

Ingredients You’ll Need

The image shows a close-up of fresh, red raspberries. Most raspberries fill a silver colander, with their rough texture and bright red color visible. A few raspberries are outside the colander, resting on a light brown textured cloth with a soft weave, placed on a white marbled surface. The focus is on the raspberries in the colander, while the background is blurred. The scene has natural soft light and gentle shadows, giving a fresh and natural feel to the image photo taken with an iphone --ar 4:5 --v 7

Getting this Raspberry Slab Pie Recipe right is all about mixing simple, approachable ingredients that come together to create extraordinary flavor and texture. Each component plays an essential role, from the crisp, buttery crust made with cold butter to the vibrant raspberry filling that gets sweetened and thickened to perfection.

All-purpose flour (1 ½ cups / 215g): The base for the flaky pastry that holds the filling beautifully.
Granulated sugar (3 tbsp + ⅓ cup): Adds sweetness both to the crust and the fruit filling, balancing the tart raspberries.
Salt (½ tsp): A small pinch enhances all the flavors and brings out the buttery richness in the crust.
Cold unsalted butter (½ cup plus 1 tbsp / 125g): Chilled butter ensures a crisp, tender crust with delicate layers.
Cold water (4-5 tbsp / 60-75 ml): Just enough to bind the dough without making it sticky or tough.
Fresh or frozen raspberries (2 cups / 227g): The star ingredient delivering bright flavor and a lovely color to the filling.
Freshly squeezed lemon juice (2 tsp / 10 ml): Lifts and balances the sweetness with a fresh, zingy note.
All-purpose flour (2 tsp / 6g) for filling: Thickens the filling so it holds nicely when sliced.
Egg (1, well beaten): For brushing on the crust, creating a beautiful golden, glossy finish.
Coarse sugar (2 tsp): Sprinkled on top for a delightful crunch and sparkle.

How to Make Raspberry Slab Pie Recipe

Step 1: Prepare the Pastry Dough

Start by whisking together the flour, sugar, and salt in a large bowl. Add the cold, small butter pieces and work them into the flour mix using your fingertips until you get a crumbly texture with bits of butter the size of oat flakes. This ensures that the crust will be wonderfully flaky. Alternatively, you can break down the butter using a stand mixer on medium-low before finishing by hand.

Step 2: Bring Dough Together

Drizzle the cold water in tablespoon by tablespoon over the flour mixture, gently tossing with a fork as you go. Add just enough for the dough to hold together when squeezed, but not so much it becomes sticky. Gather the dough on a work surface, press any loose bits back into the mass, then divide it into two halves. Wrap each piece tightly in plastic wrap and refrigerate for at least 2 hours, or better yet, overnight for a perfectly rested dough.

Step 3: Make the Raspberry Filling

While the dough chills, combine raspberries and sugar in a small saucepan over medium-low heat. Let the berries simmer for about 5 to 7 minutes until the mixture turns soupy. Stir in lemon juice, then boil gently for 10 to 15 minutes to reduce the liquid and thicken the filling. Transfer this to a clean bowl, stir in a little flour to help it set, then let it cool completely before chilling in the fridge for at least one hour. This step intensifies the raspberry flavor and ensures the filling isn’t runny.

Step 4: Roll Out the Dough and Assemble

On a lightly floured surface, roll out one half of the chilled dough into a thin rectangle or circle about ⅛-inch thick. Line your rectangular tart pan or 9-inch round tart pan with this dough, gently pressing it into the base and sides. Prick the bottom with a fork to avoid bubbling during baking. Spread the thickened raspberry filling evenly over the pastry base.

Step 5: Top and Seal the Pie

Roll out the second half of dough in the same way, and if you’d like, use a small cookie cutter to create decorative holes or shapes. Carefully place this over the filling, pressing the edges to seal everything tightly. Trim the excess dough for a clean edge, then pop the pie into the freezer while you preheat the oven to lock the shape and help keep the crust flaky during baking.

Step 6: Bake to Perfection

Brush the top of the pie with the beaten egg for a lovely golden finish, then sprinkle with coarse sugar for a sparkly, crunchy touch. Use a sharp knife to score some incisions on top of the pastry to let steam escape while baking. Bake at 375°F (190°C) for 30 to 40 minutes until the crust is beautifully golden brown. Let the pie cool completely on a wire rack before slicing so the filling can set perfectly.

How to Serve Raspberry Slab Pie Recipe

A single slice of fruit pie rests on a white plate with small floral designs and a gold rim. The pie has two layers: a golden-brown, slightly crumbly top crust with a lightly sugared surface, and a thick, deep red fruit filling visible along the side and slightly oozing out, showing a glossy, jam-like texture. A silver fork is placed near the pie slice on the plate. The plate sits on a white marbled surface. Photo taken with an iphone --ar 4:5 --v 7

Garnishes

Adding garnishes to your Raspberry Slab Pie Recipe can take it to the next level visually and in flavor. A scoop of creamy vanilla ice cream or a dollop of lightly whipped cream pairs beautifully with the tart raspberry filling. Fresh mint leaves or a light dusting of powdered sugar can also enhance presentation and aroma, making each slice irresistible.

Side Dishes

This pie deserves the company of simple yet complementary sides. Fresh fruit salad or a crisp green salad with a citrus vinaigrette balances the richness, while a cup of hot tea or freshly brewed coffee can round out dessert time perfectly. If serving for brunch, consider alongside breakfast sausage or a light cheese plate for an impressive spread.

Creative Ways to Present

To elevate your Raspberry Slab Pie Recipe beyond the ordinary, try serving in rustic wooden boards or vintage trays for a charming, farmhouse vibe. Cut into neat squares for casual parties, or provide individual slices layered with sauces like chocolate or raspberry coulis for a restaurant-style dessert experience. Adding edible flowers around the edges can also lend a whimsical touch.

Make Ahead and Storage

Storing Leftovers

Leftover raspberry slab pie stores beautifully covered at room temperature for up to two days or tightly wrapped in the refrigerator for up to four days. Keep it in an airtight container to maintain the crust’s crispness and prevent the filling from drying out.

Freezing

You can freeze this pie either before or after baking. Wrap it well in plastic wrap and then foil to protect the crust from freezer burn. Frozen slab pie will keep for up to two months. To enjoy, thaw overnight in the fridge and reheat slightly before serving.

Reheating

Reheat slices in a warm oven at 300°F (150°C) for about 10 to 15 minutes to refresh the crust’s crunch and warm the raspberry filling without making it soggy. Avoid microwaving as it tends to make the crust chewy and the filling overly hot.

FAQs

Can I use frozen raspberries for this Raspberry Slab Pie Recipe?

Absolutely! Frozen raspberries work wonderfully and are often more affordable when berries are out of season. Just make sure to thaw and drain any excess liquid before cooking to avoid a watery filling.

How can I make the crust extra flaky?

The key to a flaky crust is using cold butter and minimal handling of the dough. Also, chilling the dough before rolling and baking helps create those beautiful layers you want in a great pie crust.

Can I substitute the granulated sugar with something else?

You can experiment with brown sugar or coconut sugar for a richer, slightly caramelized flavor. However, granulated sugar works best for the classic balance of sweetness and texture in this Raspberry Slab Pie Recipe.

Is it possible to make this recipe gluten-free?

Yes! Swap the all-purpose flour with a gluten-free flour blend that’s suitable for baking. You might need to adjust the liquid slightly, so add cold water gradually to get the right dough consistency.

What is the best way to serve this pie warm without melting the filling?

Warm the pie gently in a preheated oven at a lower temperature (around 300°F) for a few minutes. This will heat the crust nicely while keeping the filling thick and luscious, perfect for diving in immediately.

Final Thoughts

There is something incredibly comforting about a home-baked Raspberry Slab Pie Recipe that fills your kitchen with sweet, fruity aromas and leaves you with a satisfying slice of handmade goodness. Whether you’re baking for a celebration or a special weekend treat, this recipe promises a delightful experience every time. So go ahead, gather your ingredients, and enjoy the process of creating this wonderful pie that everyone will rave about!