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    Home » Recipes » Homemade Pies » Homemade Blueberry Slab Pie

    Published: Jun 28, 2019 · Modified: Mar 23, 2022 by Jessica Robinson · This post may contain affiliate links

    Homemade Blueberry Slab Pie

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    blueberry pie on half sheet pan with lattice crust
    blueberry pie on a sheet pan

    Blueberry Slab Pie is made with wild blueberries, sugar, lemon juice, baked in homemade pie crust on a half sheet pan. Once cooled, this slab pie can be cut into bars and served easily.

    Blueberry pie on a half sheet pan.

    Are you looking for a delicious dessert to feed a crowd at a picnic or family gathering? This blueberry pie on a half sheet pan is the perfect option! Slab pie is nothing more than a pie made on a jelly roll pan or half sheet pan that is made in bar form. You can slice it easily into squares.

    Homemade pie is the All-American dessert I’ve been making since I was a young girl growing up on a small farm. I loved making Homemade Apple Pie with my mom and learning how to make pie crust from scratch. Those memories last a life time and I’m sharing those skills and homemade goodness with my own children.

    frozen blueberries and sugar in ceramic bowl.

    You can prepare the slab pie ahead of time. Make the blueberry pie ahead of time. Wrap it carefully with plastic wrap and freeze it. You can bake it right out of the freezer. Just brush with egg wash before putting the pie in the oven.

    How to make a Blueberry Slab Pie

    Step 1: Make enough pie crust for two double crust pies. Find my pie crust recipe here.

    Step 2: Preheat the oven to 425 degrees F. Line a ¾ sheet pan with pieces of parchment paper. Set aside.

    homemade pie crust rolled out on butcher block.

    Step 3: Roll out pie crust on a lightly floured surface into a rectangle shape, slightly larger than the half sheet pan.

    Step 4: Place the blueberries in a large bowl. Add the sugar, lemon juice, and instant tapioca. Combine with a large spoon. Set aside.

    (I used one 4-pound bag of Wyman’s Blueberries from BJ’s for this Slab pie recipe) Do NOT thaw the blueberries!

    How to Thicken Pie Filling

    I love using instant tapioca, but you can use cornstarch or tapioca flour as well, which is what I use in my apple pie filling.

    pie crust folded with wooden rolling pin red handles on butcher block.

    Fold the pie crust bottom up gently and place on the half sheet pan carefully. Unfold and press into the pan gently. Cut away any excess pie dough with kitchen shears. (You want about 1 inch over the pan.)

    Pour the blueberry mixture on the bottom pie crust. Sprinkle with cinnamon and nutmeg evenly.

    blueberry pie without the top crust on a half sheet pan.

    Roll out another piece of pie crust in a rectangular shape. Cut strips of pie crust with a pastry cutter or small pizza cutter. (Or just top with pie crust and cut air slits with a sharp knife)

    pie on sheet pan weaving lattice crust.

    Lay strips of pie crust going one way. Pull back every other piece and lay pie crust strips going the opposite way. Work your way from one section of the pie to the other end continuing the lattice weaving process.

    Brush the entire pie gently with egg wash and sprinkle with granulated sugar.

    Pie with lattice crust unbaked on a half sheet pan.

    Bake for 1 hour at 425 degrees F. Then turn the oven down to 400 degrees F and continue baking until the pie crust is evenly browned and the filling bubbling up around the edges. Should the edges of the pie crust become a little dark in color, you can gently wrap the edge of the pie with aluminum foil.

    PRO TIP: While working with pie crust, always keep it cold. Should your pie crust warm up, you can plop it in the freezer for a bit to chill. You can even do this with the entire pie if needed.

    blueberry slab pie lattice crust brushing on egg wash.

    Remove the pie from the oven and set on a baking rack to cool for 1 ½ hours in order for the pie filling to set properly.

    Tools you’ll need for a Homemade Pie

    • •Pastry cutter or two forks
    • •Small pizza cutter to cut strips of pie crust for a lattice crust
    • •Parchment paper for half sheet pans
    • •Instant tapioca for thickening pie filling
    blueberry pie on a half sheet pan with homemade crust.

    This blueberry slab pie is guaranteed to get your guests talking! More pie recipes we love – Blueberry pie, Cherry Pie, Blackberry Pie, Easy Pumpkin Pie, and Cast Iron Peach Pie.

    Blueberry pie with lattice crust on half sheet pan.

    Also try my Blueberry Muffin recipe, Raspberry Frosting, and Fried Apple Hand Pies.

    Did you make one of my recipes? Please take a moment to leave a star rating. Also, if you are on Pinterest, please feel free to leave a comment there! Follow A Farmgirl’s Kitchen on FACEBOOK, PINTEREST and YouTube and subscribe my mailing list for ALL the latest recipes!

    5 from 1 vote
    Blueberry pie on a half sheet pan with lattice crust
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    Blueberry Slab Pie

    Prep Time20 minutes mins
    Cook Time1 hour hr 30 minutes mins
    Cooling Time1 hour hr 30 minutes mins
    Slab pie is a rectangle shaped pie on a half sheet pan or jelly roll. This Blueberry Slab Pie will feed a crowd!

    Course: Desserts
    Cuisine: American, Southern
    Servings: 20 people
    Calories: 153kcal
    Author: Jessica Robinson

    Ingredients

    • 8 cups wild blueberries
    • 2 ½ cups granulated sugar
    • ¼ cup lemon juice
    • ¾ cup instant tapioca
    • ½ teaspoon ground cinnamon
    • ¾ teaspoon ground nutmeg
    • pie crust recipe for 2 double crust pies
    • granulated sugar for dusting the top of the pie
    • egg wash

    Instructions

    • Preheat the oven to 425 degrees F. Line a ¾ sheet pan with pieces of parchment paper. Set aside.
    • Roll out pie crust in a rectangle shape, slightly larger than the half sheet pan.
    • Line a half sheet pan with parchment paper and lightly spray with cooking spray.
    • Place the blueberries in a large bowl. Add the sugar, lemon juice, and instant tapioca. Combine with a large spoon. Set aside.
    • Fold the pie crust bottom up gently and place on the half sheet pan carefully. Unfold and press into the pan gently. Cut away any excess pie dough with kitchen shears. (You want about 1 inch over the pan.)
    • Pour the blueberry mixture on the bottom pie crust. Sprinkle with cinnamon and nutmeg evenly.
    • Roll out another piece of pie crust in a rectangular shape. Cut strips of pie crust with a pastry cutter or small pizza cutter.
    • Lay strips of pie crust going one way. Pull back every other piece and lay pie crust strips going the opposite way. Work your way from one section of the pie to the other end continuing the lattice weaving process.
    • Brush the entire pie with an egg wash and sprinkle with a generous helping of granulated sugar. Place the pie on the larger sheet pan to help catch any juices and make clean up easier.
    • Bake for 1 hour at 425 degrees F. Then turn the oven down to 400 degrees F and continue baking until the pie crust is evenly browned and the filling bubbling up around the edges.
    • Remove the pie from the oven and set on a baking rack to cool for 1 ½ hours in order for the pie filling to set properly.

    Recipe Notes

    PRO TIPS:
    To make an egg wash, crack an egg into a glass measuring cup and whisk together with 1 teaspoon of cold water with a fork.
    You’ll need two recipes of pie dough for this pie.
    Adjust the sugar based on how sweet your blueberries are.
    Make this pie ahead of time, plop in the freezer. Preheat the oven and bake the pie as directed.
    Let the pie cool for a minimum of 1 ½ hours before slicing into squares. This will ensure the filling sets properly.

    Nutrition

    Calories: 153kcal | Carbohydrates: 39g | Protein: 1g | Fat: 1g | Saturated Fat: 1g | Sodium: 1mg | Potassium: 49mg | Fiber: 1g | Sugar: 31g | Vitamin A: 30IU | Vitamin C: 6.9mg | Calcium: 4mg | Iron: 0.2mg
    Tried this Recipe? Pin it for Later!Mention @AFarmgirlsKitchen or tag #afarmgirlskitchen!

    Disclosure: As an Affiliate Marketer, I earn from qualifying purchases. If you click a product affiliate link on A Farmgirl’s Kitchen and make a purchase, I may receive a commission at no additional cost to you!  I own every cooking product I recommend and love how they perform.

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    Reader Interactions

    Comments

    1. Geri says

      June 27, 2021 at 12:19 am

      I made this today, flavor was great but directions read to bake at 425…. That’s way too high. Drop it down to 350.

      Reply
      • Jessica Robinson says

        June 27, 2021 at 7:39 am

        Hello Geri,
        Thanks for writing! The directions are completely correct. We typically bake pies between 400-425 degrees F. Baking a pie at 350 is a little low and it will take much longer to bake the pie filling as well as brown the pie crust. We always recommend using an oven thermometer to be sure your oven is the correct temperature. They often can be off a little.

        Reply
    2. Lisa Hatfield says

      June 28, 2019 at 10:06 pm

      5 stars
      You did it again Jessica, I need a recipe to feed a large crowd at a summer party and slab pie will be perfect!

      Reply
      • Jessica Robinson says

        June 28, 2019 at 10:20 pm

        Thanks so much Lisa!! Glad you love this pie!

        Reply

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    Meet Jessica

    Hi I’m Jessica!

    I am a home cook who creates wholesome family meals, homemade pies, baked goods and preserves foods using easy to find ingredients. All of my recipes use simple and readily available ingredients. Read more →

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