Blueberry Slab Pie Dessert

Name: Blueberry Slab Pie Dessert
Prep time: 30 min
Cook time: 50 min
Total time: 1 h 20 min
Cuisine: American
Ingredients: 3 refrigerated ready-made pie crusts; 1.2 kilograms fresh blueberries; 150 grams granulated sugar; 32 grams cornstarch; 0.5 teaspoon ground cinnamon; 0.25 teaspoon kosher salt; 15 millilitres fresh lemon juice; 1 large egg white, beaten; 1 large egg, beaten; Coarse sanding sugar, for sprinkling (optional)

Author: Clara Hastings

Published: November 22, 2025

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Introduction to Blueberry Slab Pie Dessert

Have you ever craved a dessert that feels like a warm hug after a long day? Blueberry Slab Pie Dessert is just that! It’s a delightful and easy recipe that can brighten any busy afternoon or be the highlight of a family gathering. Picture this: a perfectly flaky crust filled with luscious, juicy blueberries that remind you of summer. This dessert is not just about taste; it’s about creating sweet moments with loved ones. Trust me, you’ll love how simple it is to whip together, making it perfect for any occasion, no matter how hectic life gets.

Why You’ll Love This Blueberry Slab Pie Dessert

This Blueberry Slab Pie Dessert is a lifesaver for busy moms like me, offering a stress-free way to impress the family. It combines the ease of pre-made crusts with the vibrant flavors of fresh blueberries. You’ll be amazed at how quickly it comes together. It’s a crowd-pleaser too! Slices are generous and perfect for serving a hungry group. Trust me, everyone will be begging for seconds!

Ingredients for Blueberry Slab Pie Dessert

Gathering the right ingredients is half the fun of creating this delightful Blueberry Slab Pie Dessert. Here’s what you’ll need:

Refrigerated ready-made pie crusts: These save you precious time. Feel free to choose your favorite brand. You can also make your own if you have the time and inclination!
Fresh blueberries: Opt for plump, juicy blueberries for maximum flavor. Frozen berries can work too, but ensure they’re thawed and drained well.
Granulated sugar: This adds sweetness, balancing the tartness of the blueberries. You can substitute with coconut sugar for a healthier option.
Cornstarch: Essential for thickening the filling, so it doesn’t ooze out. Tapioca starch is a great substitute if you’re looking for gluten-free options.
Ground cinnamon: This brings warmth to your pie. A hint of nutmeg can also enhance the flavor beautifully if you like a spiced touch.
Kosher salt: Just a pinch elevates all the flavors, making everything pop. You can use sea salt if that’s what you have on hand.
Fresh lemon juice: A dash of acidity brightens the pie. Lime juice can serve as a zingy alternative if you’re feeling adventurous!
Beaten large egg white: This is brushed on the crust to create a barrier and prevent sogginess. It also helps with browning.
Beaten large egg: Used for brushing the top of the pie, enhancing its shiny finish. Opt for a plant-based milk wash as a substitute for a vegan option.
Coarse sanding sugar: Although optional, it’s a lovely addition for a delightful crunch and sparkle on top of your pie.

Exact quantities for each ingredient can be found at the bottom of the article, available for printing. Happy baking!

How to Make Blueberry Slab Pie Dessert

Step 1: Preheat and Prepare

First off, let’s get your oven preheated to a nice 220°C. This ensures a perfect bake. While that’s warming up, take your refrigerated pie crusts out of the fridge. Let them sit in their packaging for a few minutes. This little trick makes them easier to roll out later. Trust me, you don’t want to be wrestling with cold dough!

Step 2: Mix the Filling

Now it’s time to make that luscious filling. In a large mixing bowl, gently combine those beautiful fresh blueberries with granulated sugar, cornstarch, a pinch of ground cinnamon, kosher salt, and fresh lemon juice. Mix it carefully! You want to keep those blueberries intact, bursting with flavor, as they nestle together. The sugar will work its magic, creating a sweet sauce as the pie bakes. Let this mixture sit for just a bit, allowing the flavors to meld together beautifully.

Step 3: Roll Out the Crust

Next up, let’s roll out the crusts! Lightly flour your work surface to prevent sticking. Unroll the first two pie crusts and stack them on top of each other. Roll them out into a rectangle, about 43 x 36 centimeters. This gives you a beautifully thick base. Once it’s rolled out, transfer the dough to your quarter sheet pan. Press it gently to fit into the corners, allowing some dough to hang over the edges. This acts as a tasty overhang for your lattice!

Step 4: Fill the Crust

With the crust in place, it’s time to fill it up! Brush the bottom of the crust lightly with beaten egg white. This will create a barrier, keeping it from getting soggy. Now, spoon your luscious blueberry mixture onto the crust evenly. Spread it out gently to avoid crushing those sweet berries. Once that’s done, it’s time to prepare for our gorgeous lattice top that’s going to give it that wow factor!

Step 5: Create the Lattice Top

Now for the fun part! Roll out the third pie crust into a circle, about 30 centimeters wide. Using a pastry cutter, pizza wheel, or a sharp knife, cut it into 14 strips, each about 1.25 centimeters wide. Start placing seven strips diagonally across the filling, alternating the lengths for a beautiful look. Fold back every other strip for a moment and weave the other strips across it in the opposite direction. This will create a charming lattice pattern that looks as delicious as it sounds! Finally, roll the edges towards the center to conceal the strip ends and form a tidy border.

Step 6: Bake the Pie

With your pie all ready to shine, it’s time to pop it in the oven! Brush the entire surface with beaten egg for that golden glow. If you decide to use coarse sanding sugar, sprinkle it on top for an extra crunch. Bake the pie for 30 minutes at 220°C. Then cover it with foil to prevent over-browning and bake for an additional 20 minutes. Keep an eye on it; you’re looking for a golden crust and bubbly filling. The aroma wafting through your kitchen will be like an irresistible invitation!

Step 7: Cool and Serve

Once baked to perfection, pull the pie out of the oven and let it cool at room temperature for at least one hour. This allows the filling to set up nicely. When you’re ready to serve, slice it up, and wow, trust me, you’ll be the star of dessert time! Whether served warm or at room temperature, it’s a delightful treat. Enjoy with a scoop of vanilla ice cream or a dollop of whipped cream for that perfect finish!

Tips for Success

Always use fresh blueberries for the best flavor and texture.
When mixing the filling, be gentle to avoid smashing your precious blueberries.
Chill your pie crust before rolling; it makes handling so much easier.
Don’t skip on the egg wash; it gives your pie that beautiful golden finish.
Let the pie cool completely to ensure neat slices when serving.

Equipment Needed

Quarter sheet pan: A must for this recipe. Baking sheets are a good alternative if that’s what you have.
Rolling pin: Essential for rolling out dough. A wine bottle can work in a pinch!
Mixing bowl: Great for combining ingredients. Any large bowl will do.
Pastry cutter or knife: Useful for cutting dough strips. Scissors can also do the trick in a bind!
Brush: For the egg wash. A clean paintbrush or even your fingers can work!

Variations of Blueberry Slab Pie Dessert

Berry Medley: Swap out some of the blueberries for raspberries or strawberries. This gives a delightful twist to the flavor profile!
Vegan Version: Use a plant-based pie crust and replace the egg wash with almond milk for an equally beautiful finish. Substitute cornstarch with arrowroot starch for a vegan thickener.
Gluten-Free Option: Opt for a gluten-free pie crust and look for certified gluten-free cornstarch or tapioca starch to thicken your filling.
Crumb Top: Instead of a lattice crust, create a crunchy topping with oats, brown sugar, and a bit of butter for a delicious crumb pie.
Spiced Adjuncts: Infuse flavors with nutmeg, ginger, or even a splash of vanilla extract in the blueberry filling for an extra layer of warmth and depth.

Serving Suggestions for Blueberry Slab Pie Dessert

Pair with Ice Cream: Vanilla or lemon ice cream is a delightful contrast to the warm pie.
Whipped Cream: A dollop of freshly whipped cream adds richness and creaminess.
Fresh Mint Garnish: A sprig of mint on top elevates your presentation and adds color.
Complementary Drinks: Serve with a chilled glass of lemonade or iced tea for a refreshing touch.
Garnish with Lemon Zest: A sprinkling of lemon zest over the pie can brighten the flavor beautifully.

FAQs about Blueberry Slab Pie Dessert

Can I use frozen blueberries for this pie?
Absolutely! Just make sure to thaw and drain them before mixing. Frozen berries can work beautifully, but fresh blueberries do add a punch of flavor!

How do I store leftover Blueberry Slab Pie Dessert?
Keep the pie covered at room temperature for up to two days. For longer storage, refrigerate it, and it should last about a week. Just warm slices in the microwave before serving!

Can I make this dessert ahead of time?
Certainly! You can prepare the filling a day in advance and store it in the fridge. Assemble and bake your pie the next day for a freshly baked taste!

What can I do if the pie crust is getting too brown?
Cover the edges with a strip of aluminum foil if you notice it’s browning too quickly. This will shield the crust while the rest of the pie continues to bake to perfection.

How do I make the pie filling thicker?
If you prefer a thicker filling, simply increase the amount of cornstarch a tablespoon at a time until it reaches your desired consistency. This ensures you achieve a slice that holds its shape beautifully!

Final Thoughts on Blueberry Slab Pie Dessert

Creating this Blueberry Slab Pie Dessert brings me so much joy. It’s more than just a recipe; it’s about the moments shared with family and friends around the table. The beautiful aroma wafting from the oven sets the stage for laughter and sweet conversations. Each slice, bursting with juicy blueberries, is a reminder of summer days spent together. I hope this pie fills your home with warmth and love just as it does mine. So, roll up your sleeves, dive into this delightful creation, and let the sweet memories unfold!