Triple Berry Slab Pie

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If you’re looking for a delicious and easy dessert to make, look no further than Triple Berry Slab Pie! This scrumptious treat is made with a buttery crust filled with fresh strawberries, blueberries, and raspberries. The sweet-tart filling pairs perfectly with the flaky crust and makes this pie absolutely irresistible.

Not only does it taste amazing but it’s also incredibly simple to make – perfect for novice bakers or busy cooks who need something quick and tasty. So if you’re in the mood for something special yet straightforward to whip up, give this Triple Berry Slab Pie a try!

Triple Berry Slab Pie


Ingredients Needed To Make the Triple Berry Slab Pie

  • 3 store-bought pie crusts or homemade pie crusts.
  • 2 lbs of strawberries, washed, dried, and hulled
  • 2 pints raspberries, washed and dried
  • 2 pints blueberries, washed and dried
  • 1 tablespoon of lemon juice, fresh or bottle
  • ¾ cup white granulated sugar
  • 6 tablespoons of corn starch
  • ½ teaspoon kosher salt
  • 2 tablespoons unsalted butter, cubed
  • 1 egg
  • 1 tablespoon of water
Fresh Berry Slab Pie

Supplies Used:

Here is an extensive list of supplies you will need to make this delicious Triple Berry Slab Pie:

  • Rolling pin
  • Sheet pan/jelly roll pan 17 x 12.
  • Fork
  • Sharp knife
  • Pie weights, aluminum foil, or parchment paper
  • Strawberry huller
  • Medium-sized bowl
  • Large mixing bowl
  • Spoon
  • Cutting board
  • Cookie cutter if cutting out shapes
  • Small bowl
  • Pastry brush
  • Pastry cutter

Strawberry HullerStrawberry HullerStrawberry HullerStar Shape CuttersStar Shape CuttersStar Shape CuttersNon-Stick Jelly Roll PanNon-Stick Jelly Roll PanNon-Stick Jelly Roll Pan


How to make the Fresh Berry Slab Pie

Prepare the crust:

  • If you are using a store-bought pie crust, lay it out on the counter so it can come to room temperature.
  • If you are making a homemade crust, prepare that recipe now.
Triple Berry Slab Pie pastry
  • First thing to do is Preheat the oven to 375 degrees.
  • then you will need to lightly flour your work surface and lay both pieces of your pie dough on top of each other and roll out your pie dough to fit your sheet/jelly roll pan. One you have it the correct thickness gently roll the dough around your rolling pin and transfer it to the jelly roll pan.
  • Trim the edges of the dough with a sharp knife. Crimp the pie crust around the edge of the pan and using a fork pierce the bottom and sides of the dough.
  • Place either parchment paper or aluminum foil down on the crust and lay dried beans or pie weights on top of the crust.
  • Bake for approx 10 minutes. Remove the foil and pie weights. Place back into the oven and bake for another 5 to 7 minutes.
  • Let the crust cool.

Prepare the Berries:

  • While the crust is cooling, wash, hull, and dice the berries.
  • In a large bowl, add the strawberries, blueberries and raspberries, lemon juice, corn starch, sugar, and salt. Stir to mix everything together. Then Set aside.
Fresh Berries in a bowl

Prepare the Top:

  • Next you will need to roll out the top layer of pie dough. then cut out the lattice or your preferred shapes. I like the look of the lattice.
  • Then in a small bowl, whisk together the egg and one tablespoon of water to create an egg wash.
  • Now to assemble the berry slab pie, spread the berry mixture over the bottom crust. Then add cubed butter over the top of the berries. Now the fun part top the berries with the lattice crust or preferred shapes. I used stars, this dessert would be perfect a patriotic or 4th July party.
  • Brush the pastry with the egg wash.
  • Place in the over and bake at 375 degrees for approximately 50 minutes or until the crust is golden brown and the berries are nice and bubbly. You may need to cover the outer crust to prevent it from getting too brown.
  • Once it is baked to your liking, take out of over and let it cool so the berry mixture can set a little. (it tastes delicious warm)
  • Top with vanilla ice cream and serve, Enjoy!
Strawberry Slab Pie

Time to Complete

Prep time: 30 minutes

Baking time: 65 – 70 minutes

Recipe notes and tips:

While the recipe is straightforward, it is always nice to have a few different tips and suggestions to make things easier. So here are some of the recipe notes and tips to help you out:

  • If you’re using store-bought pie crusts, make sure they are thawed completely before using.
  • When cutting out shapes to decorate the top of your slab pie (using a cookie cutter), it’s best to use a sharp knife to cut them out from the unbaked dough. It will give you the cleanest shapes.
  • If you’re using homemade pie crust, chill it for about 30 minutes before rolling it out as this will make it easier to work with.
  • If you want a golden-brown finish, brush the top with an egg wash (an egg beaten with 1 tablespoon of water). This will give it a nice shine and color.
Fresh Strawberry Slab Pies

Variations to try:

Like with many recipes there will always be variations to try. Here are a few suggestions.

  • If you’re not a fan of any of the berries, simply replace them with another type of berry. Any combination will work as long as it equals the same amount.
  • To make the pie even more special, sprinkle some chopped nuts on top before baking for added crunch and flavor.
  • For a bit of sweetness and tartness, you can add some chopped rhubarb to the filling.
  • If you’re looking for a healthier version of this pie, switch out the store-bought or homemade crust with an almond flour or coconut flour based one.
  • You can also try other flavorings such as adding a teaspoon of ground cinnamon or nutmeg to the filling.
  • If you’re feeling creative and courageous, try cutting out shapes from the top crust and place them strategically on top of the filling for a more decorative look.
  • For a twist, swap out some of the white sugar for brown sugar. This will give it a richer flavor and a deeper color.
  • To make the filling even more indulgent, add a tablespoon of almond or lemon extract to it before baking.
  • If you’re not a fan of traditional pie crusts, try swapping out the top and bottom layer with a crumb topping made from oats, butter, and brown sugar. This will give it an oat-y crumble texture.
  • To make it extra special, top with fresh whipped cream right before serving.
slice of Triple Berry Slab Pie


Like with any recipe, there are often questions that need answering. I thought I would share some of the common questions here, but if you have any comments or questions please don’t hesitate to get in touch directly.

How long will the Triple Berry Slab Pie last in the fridge?

The Triple Berry Slab Pie will keep for up to four days in an airtight container. Be sure to let it cool completely before storing.

Can I use frozen berries instead of fresh ones?

Yes, you can definitely use frozen berries! Just make sure they are thawed and drained before using.

Are there any other variations or additions that I could try?

Absolutely! You can add chopped nuts to the top of your pie for added crunch and flavor, swap out some of the white sugar for brown sugar, or try adding some ground cinnamon or nutmeg to the filling for an extra bit of flavor.

Is this pie suitable for vegans?

Yes, this is a vegan-friendly recipe as long as you use a vegan-friendly pie crust and swap out the butter with coconut oil!

Making a Triple Berry Slab Pie is simple and can be customized to fit any dietary needs. With the tips, variations, and FAQs provided in this article you are sure to have success creating your own delicious version of this classic dessert. Whether you’re looking for something vegan friendly or just want some added crunch and flavor, there is an option here that will suit everyone’s tastes! So grab those ingredients out of the pantry and get baking – your family won’t regret it! Enjoy!

Triple Berry Slab Pie

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