This homemade Blueberry Pie Filling is sweet, glossy, and packed with juicy berries in every spoonful. It comes together on the stovetop in just a few minutes and is perfect for pies, bars, and all kinds of easy desserts. One of my favorite ways to use it is inside Blueberry Pie Bombs, little handheld desserts that disappear fast every time! If you’re into fruit fillings like this, you’ll also want to check out my Cherry Pie Filling for another easy homemade option that works in all your favorite desserts.

Ingredients & Substitutions
- Blueberries: The base of the filling. Fresh or frozen berries both work well. If using frozen, there’s no need to thaw; just allow a slightly longer cook time.
- Granulated sugar: Sweetens the filling and balances the natural tartness of the berries. Adjust slightly based on the sweetness of your fruit.
- Cornstarch slurry (cornstarch + water): This is what thickens the filling so it sets properly in pies and desserts. Whisk the cornstarch and water together until completely smooth before adding to the saucepan to avoid lumps. Arrowroot starch can be used instead, but the texture will be slightly glossier.
- Fresh lemon juice: Adds brightness and helps balance the sweetness of the filling.
- Lemon zest: Adds fresh citrus flavor that really enhances the blueberries and gives the filling a brighter, fresher taste.
- Vanilla extract: Adds warmth and depth to round out the flavor. Optional, but highly recommended for a more bakery-style filling.

FAQs
Can I use frozen blueberries for this recipe?
Yes! Frozen blueberries work very well. There’s no need to thaw them first; just add them straight to the saucepan. You may need a few extra minutes of cooking time as they heat through and release their juices.
Why is my blueberry pie filling runny?
This usually happens if the filling didn’t cook long enough after adding the cornstarch slurry. Make sure it simmers for 1 to 2 minutes until it thickens and looks glossy. It will also continue to set as it cools.
Can I make blueberry pie filling ahead of time?
Absolutely. This is a great make-ahead recipe. Let it cool completely, then store it in the refrigerator until you’re ready to use it.
Can I use this blueberry pie filling in other desserts?
Yes! It’s delicious in all kinds of desserts beyond pie. Try it in hand pies, turnovers, bars, and cheesecakes, too!
Can I adjust the sweetness?
Yes. Blueberries vary in sweetness, so you can slightly increase or decrease the sugar to taste. Just avoid reducing it too much, since sugar also helps with the texture and balance of the filling.
Why is my blueberry pie filling too thick after it cools, and how do I fix it?
It’s normal for the filling to thicken more as it cools because the cornstarch continues to set. To loosen it, gently warm the filling on the stove with 1-2 tablespoons of water (or lemon juice) per cup of filling, stirring until it reaches your desired consistency.
Can I freeze blueberry pie filling?
Yes, this filling freezes well. Let it cool completely, then store in a freezer-safe container for up to 3 months. Thaw in the refrigerator before using.

How to Use Blueberry Pie Filling
This blueberry pie filling is one of those recipes that works in so many different desserts. Once it’s cooled, you can spoon it, spread it, or bake it into just about anything. Here are some of my favorite ways to use it:
- Blueberry Pie: The classic use! Spoon it into a store-bought or my no-fail pie crust for an easy dessert.
- Hand Pies or Turnovers: Perfect for a grab-and-go treat with flaky pastry like my Blueberry Lemon Napoleon.
- Cheesecake Topping: Spoon over my perfect cheesecake for a fresh, fruity layer.
- Bars and Desserts: Use as a filling layer in crumble bars, Blueberry Cream Cheese Bars, or dessert squares.
- Breakfast Topping: Delicious spooned over pancakes & waffles, French toast, or yogurt for an easy morning upgrade.

How to Store Blueberry Pie Filling
Let the blueberry pie filling cool completely before storing. This helps prevent condensation and keeps the texture thick and smooth.
Refrigerator: Store in an airtight container for up to 5 days.
Freezer: Freeze in a freezer-safe container for up to 3 months. Thaw overnight in the refrigerator before using.
For best results, stir it after thawing or chilling, as it may thicken slightly over time.

Blueberry Pie Filling
Ingredients
- 4 cups (592 g) fresh or frozen blueberries, divided
- ⅓ cup (67 g) granulated sugar
- 1 tablespoon fresh lemon juice
- ½ teaspoon lemon zest
- ¼ cup cornstarch
- ¼ cup water
- ½ teaspoon vanilla extract
Instructions
- In a medium saucepan over medium heat, combine 2 cups of the blueberries, granulated sugar, lemon juice, and lemon zest. Cook, stirring frequently, until the berries begin to break down and release their juices, about 8 to 10 minutes.
- In a small bowl, whisk together the cornstarch and water until completely smooth.
- Stir the cornstarch slurry into the simmering blueberry mixture. Continue cooking for 1 to 2 minutes, until the filling thickens and becomes glossy.
- Remove from heat and gently stir in the remaining 2 cups of blueberries. This keeps some berries whole for texture.
- Stir in the vanilla extract. Taste and adjust sweetness if needed.
- Allow the filling to cool completely before using in pies, bars, or desserts.
Did you make this recipe?
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