Description
Strawberry Blackberry Slab Pie is a summery, shareable dessert featuring a flaky crust filled with juicy strawberries and blackberries thickened with cornstarch, perfect for family gatherings or picnics.
Ingredients
Scale
- 4 cups all-purpose flour
- 1 1/2 teaspoons salt
- 1 teaspoon granulated sugar
- 1 3/4 cups unsalted butter, cut into cubes
- 3/4 cup ice-cold water
- 1 large egg
- 1 tablespoon milk
- Coarse sugar for sprinkling
- 4 cups chopped strawberries
- 4 cups halved blackberries
- 1/2 cup granulated sugar
- 1/4 cup cornstarch
- 1 tablespoon lemon juice
- 1 teaspoon vanilla extract
- Pinch of salt
Instructions
- In a large bowl, mix flour, salt, and sugar. Cut in cold butter until mixture resembles pea-sized crumbs.
- Slowly add cold water, stirring until dough forms moist clumps. Do not overwork.
- Divide dough into two discs, wrap in plastic, and chill in fridge for at least 2 hours.
- Combine strawberries, blackberries, sugar, cornstarch, lemon juice, vanilla, and salt in a bowl. Mix gently and let sit.
- Preheat oven to 375°F (190°C).
- Roll out one dough disc on a floured surface into a 10×16 inch rectangle. Transfer to a baking sheet.
- Spread the fruit filling evenly on the dough, leaving a 1-inch border.
- Roll out the second dough disc and place it over the filling. Seal edges and flute them decoratively.
- Cut slits in the top crust for steam to escape.
- Beat egg with milk and brush over the top crust. Sprinkle with coarse sugar.
- Bake for 45-55 minutes until crust is golden and filling bubbles. Cool completely before slicing.
Notes
- Do not overwork the dough to keep crust flaky.
- Use cold butter and cold water for best crust texture.
- Allow pie to cool fully before slicing to prevent filling from running.
- Substitute gluten-free flour or vegan butter for dietary needs.
- Pie can be stored at room temperature for 1-2 days or refrigerated up to 5 days.
- Reheat slices in microwave or oven for warm servings.
- Freeze wrapped slices for up to 3 months.
- Prep Time: 30 minutes (plus 2 hours chilling)
- Cook Time: 45-55 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 slice (approximate)
- Calories: 320
- Sugar: 24g
- Sodium: 210mg
- Fat: 18g
- Saturated Fat: 11g
- Unsaturated Fat: 6g
- Trans Fat: 0g
- Carbohydrates: 38g
- Fiber: 3g
- Protein: 3g
- Cholesterol: 45mg
Keywords: Strawberry Blackberry Slab Pie, berry slab pie, mixed berry slab pie recipe, summer fruit slab pie, easy berry dessert