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Blueberry Slab Pie is the easiest way to make and serve homemade pie. Instead of using a pie dish, the crust and filling are baked in a jelly roll pan, making it really easy to slice and serve. This cookie sheet blueberry pie serves a crowd – make it for potlucks, holidays, cookouts, or anytime you want a fantastic homemade pie that’s easy to serve and even easier to eat!
Table of Contents
Easy Blueberry Slab Pie
There are regular pies, and then there are slab pies which are bigger, better versions – especially if you need a lot of pie to serve.
Slab pie is genius, really. It’s just a pie…but in a sheet pan instead. So it’s more like a pie in a bar form. I love them for bigger events when you need a lot of desserts and this blueberry sheet pie recipe? It’s delicious.
- For this recipe, you can use homemade pie dough or store-bought.
- You can do a double crust for this pie (more on that in the FAQ), but I love a blueberry crumble pie. It’s easy to make and is the perfect buttery, crunchy complement to the blueberry filling.
- The filling is my blueberry pie filling – but you can use a can too!
- The slab pie is baked in a jelly roll pan, but you could use a 9×13” pan.
Ingredients
Pie Crust: You can use a box of refrigerated pie crusts from the store or use a double batch of my all-butter pie crust recipe. For the pie crust you will need flour, salt, cold water and ice cold unsalted butter.
Blueberry Pie Filling: You are welcome to go the semi-homemade route and use a can, or you can make my homemade blueberry pie filling recipe!
Crumble Topping: This is a variation of my crumble topping recipe. You’ll need:
- Unsalted Butter: I like to start with it a bit softened
- Granulated Sugar: For sweetness (you can also use brown if you prefer)
- All-Purpose Flour: Be sure to measure it correctly
- Quick Oats: I use quick oats. If you don’t have those, you can make your own quick oats from old fashioned.
How to make Blueberry Slab Pie
- Make the pie crust: The easiest way to make the dough for the crust is with a food processor. If you are using refrigerated dough, you can skip this step. Place the flour and salt in a food processor and pulse for a second to mix them. Next, add the cold butter and pulse until it has been worked through the flour. Add the water one tablespoon at a time until the dough comes together.
- Check out my post all about how to make homemade pie crust for photos and a video.
- Prepare the Pan: Roll the dough into a large rectangle then press the pie crust into the bottom and up the sides of a jelly roll pan (10×15-inch with 1-inch sides). Chill until ready to fill and bake.
- Fill: Spread the pie filling over the top of the dough.
- Make the crumble: Place the softened butter, flour, oats, and sugar in a large bowl. Use a hand mixer to combine the ingredients. You may need to use your hands to break up the butter if it’s in big chunks.
- Top: Sprinkle the topping over the top of the filling. Lightly press on it, so it’s compact.
- Bake the slab pie for 30 to 40 minutes or until the topping begins to brown. Cool it completely before slicing and serving.
Tip From Dorothy
Tips for Blueberry Slab Pie
- The nice thing about a jelly roll pan is that the bars are on the thinner side. If you use a 9×13” pan, the bars will be thicker and may need a little more baking time.
- When you bake the pie, the blueberry filling might bubble over, so place another pan or even sheets of heavy foil on the rack underneath your pan.
- I love the blueberry filling but feel free to use other fruit pie fillings like raspberry, strawberry, or cherry.
FAQ
For the best results, use a Jelly roll pan. The size I use is 10×15”.
I use a double batch of my pie dough recipe. Or you can use two Pillsbury pie doughs.
Yes, but you will need to double the amount of crust. So, two batches for the bottom crust and two batches for the top.
Once it’s cooled, cover it loosely with plastic wrap and keep it in the refrigerator. It will keep well for two to three days.
Yes, cool it thoroughly and then tightly wrap it. Keep it in the freezer for up to three months. Then, thaw it in the refrigerator before serving.
Blueberry Slab Pie
Ingredients
For the Crust:
- 2 ½ cups (304g) all-purpose flour
- ½ teaspoon salt
- 1 cup (226g) unsalted butter (diced and cold)
- 2-3 tablespoons (30-45ml) ice water
For the Filling & Topping:
- 1 recipe Blueberry Pie Filling (or a 21 oz can)
- ½ cup (113g) unsalted butter, softened slightly
- 1 cup (124g) all-purpose flour
- ½ cup (43g) quick cooking oats
- ½ cup (100g) granulated sugar
Instructions
- Make your crust: Pulse flour and salt in a food processor for a second. Add butter and pulse until butter has been worked through the flour. Add water, 1 tablespoon at a time, until the dough comes together (I used 2 tablespoons water).
- Roll out the dough carefully, between sheets of parchment or wax paper, to a large rectangle. Carefully transfer it to a 10×15-inch jelly roll pan and press it into the bottom and up the sides. Chill at least 30 minutes.
- Preheat oven to 350°F.
- Spread blueberry pie filling evenly over the crust.
- Using a hand mixer, mix remaining topping ingredients (butter, flour, oats, and sugar) in a large bowl. You may need to use your hands to break up the large bits of butter. Sprinkle over the top of the blueberry filling and press to compact.
- Place on a larger cookie sheet in case of spillage. Bake for 35-45 minutes until topping begins to brown. Cool before cutting.
- Serve plain or with ice cream. Store in an airtight container for up to 3 days or freeze for up to 2 months.
Recipe Video
Recipe Nutrition
Blueberry Slab Pie also known as pan pie is the easiest way to make and serve homemade pie. Instead of using a pie dish, the crust and filling are baked in a jelly roll pan, making it super easy to slice, serve, cover and save for seconds!
How do you recommend defrosting and reheating?
Let defrost in the refrigerator. For reheating, in a low oven or even the air fryer.
how much sugar do you use? 1 cup or 21/2 cups. I want to make this but am not sure about the amount of sugar to use for the topping.
Thanks!
Thank you for catching that – it’s 1/2 cup! The original didn’t erase when I pasted in the new number.
I have never been a huge fan of blueberries but a coworker of mine loves them, I wanted to make something for his birthday. After scouring the internet for blueberry recipes i found yours on a list of blueberry desserts you must try. I was so nervous of the out come, as i have never made my own pie crust before. Turns out its extremely easy and i am so glad i stumbled across your page. These bars were gone so quick it was amazing. Thank you for sharing your recipe!
Love your recipes.. have made many of them and shared them with office co-workers!!! they are all so amazing and like you, I too reside in Sacramento!!
Making these tonight. My son loves blueberries. Anything that has three sticks of butter has got to be good!
I hope you love it! I ate way too much of that by myself! SO GOOD. 🙂
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