Blueberry Pie Donut Bars
These Blueberry Pie Donut Bars are pillowy soft and fluffy on the inside with a perfectly golden and slightly chewy exterior. Each bar is filled with a homemade blueberry compote that is bursting with sweet and bright blueberry flavor, fried until perfectly golden, coated in a silky vanilla bean glaze, and finished with a light whipped buttercream and buttery shortbread crumbles on top. Served warm with a hot cup of coffee — these donut bars are the ultimate indulgent treat you'll want to make on repeat.
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Ingredients You Need:
Full ingredients and recipe are in the recipe card below. Read through this section for all the ingredients substitution and baking tips!
Milk: Warmed to around 110F to activate the yeast — it should feel like a warm bath. Any milk of choice works well in both the dough and the vanilla bean glaze.
Granulated Sugar: Feeds the yeast during activation and adds a subtle sweetness to the donut bar dough — also used in the blueberry compote filling to sweeten the blueberries perfectly.
Active Dry Yeast: The leavening agent that gives these donut bars their pillowy soft, fluffy, and airy texture — make sure it is properly activated and frothy before adding to the dough.
Greek Yogurt or Sour Cream: Adds richness and moisture to the dough, keeping the donut bars incredibly soft, tender, and fluffy on the inside throughout.
Salted Butter: Melted into the donut bar dough for richness and flavor, and melted into the vanilla bean glaze for a rich, buttery depth that makes it silky and absolutely irresistible.
Eggs: Provide structure, richness, and stability to the dough while helping the donut bars hold together and fry up perfectly golden and fluffy.
Vanilla Bean Paste or Extract: Adds a warm, sweet, and aromatic flavor that enhances the donut bar dough, blueberry compote filling, and vanilla bean glaze throughout.
Bread Flour: Gives the donut bars a slightly chewier, more structured texture that holds up beautifully during frying — all-purpose flour works as a substitute.
Salt: Balances the sweetness and enhances all the flavors throughout the donut bar dough and the vanilla bean glaze.
Blueberries: The star of the homemade blueberry compote filling — fresh or frozen wild or regular blueberries both work beautifully for a sweet, bright, and jammy filling that bursts with flavor in every single bite.
Lemon Juice: Adds a bright, tart citrus flavor to the blueberry compote that balances the sweetness of the blueberries and makes the filling truly shine.
Powdered Sugar: The base of the silky vanilla bean glaze that creates a smooth, beautiful coating that sets perfectly on each warm donut bar.
Why You’ll Love Blueberry Pie Donut Bars:
Pillowy Soft And Fluffy On The Inside: These donut bars are incredibly light, airy, and pillowy soft on the inside with a tender, melt-in-your-mouth interior that makes every single bite absolutely irresistible.
Perfectly Golden And Slightly Chewy Exterior: Each donut bar fries up with a beautifully golden and slightly chewy exterior that gives the most satisfying texture contrast with the soft, fluffy inside.
Bursting With Homemade Blueberry Compote: Each donut bar is filled with a homemade blueberry compote that is sweet, bright, and bursting with fresh blueberry flavor in every single bite.
That Silky Vanilla Bean Glaze: The silky vanilla bean glaze coats each donut bar perfectly and adds a sweet, aromatic, and beautifully glossy finish that makes them look and taste absolutely stunning.
Light Whipped Buttercream On Top: The light and airy whipped buttercream adds a creamy, dreamy finishing touch that pairs beautifully with the vanilla bean glaze and blueberry compote filling.
Buttery Shortbread Crumbles: The buttery shortbread crumbles on top add the most satisfying crunch and a rich, buttery flavor that ties all the elements of these donut bars together beautifully.
The Ultimate Blueberry Pie Experience: Every element of a classic blueberry pie — sweet blueberry filling, buttery crumble, and creamy topping — all wrapped up in the most incredible donut bar form.
Served Warm For The Best Experience: These donut bars are at their absolute best served warm straight from the glaze with a hot cup of coffee — the ultimate indulgent treat worth every single bite.
Tips for Making Blueberry Pie Donut Bars:
Activate The Yeast Properly: Make sure the milk is warmed to around 110F — too hot and it will kill the yeast, too cold and it won't activate. It should feel like a warm bath. Look for a frothy, bubbly mixture after 5–7 minutes to know it's ready.
Use Room Temperature Ingredients: Greek yogurt or sour cream, eggs, and butter should all be at room temperature so they incorporate evenly into the dough for the smoothest, most consistent result.
Let The Flour Rest Before Kneading: After mixing the dough on low for 1 minute, let it rest for 5 minutes before kneading — this allows the flour to fully absorb the liquids for a smoother, more elastic dough.
Don't Overdo The Flour: The dough should be slightly sticky — only add extra flour one tablespoon at a time if it's too sticky to pull away from the sides of the bowl. Too much flour will result in dense, dry donut bars.
Make The Blueberry Compote Right After The Dough: Prepare the blueberry compote immediately after mixing the dough so it has enough time to cool completely before filling the donuts — warm compote will be too runny to pipe properly.
Cool The Compote Quickly: Transfer the compote to a separate bowl, cover tightly with plastic wrap to prevent a film from forming, and place it in the refrigerator to speed up the cooling process.
Let The Dough Rise Fully: Give the dough a full 1–1.5 hours to double in size for the lightest, fluffiest donut bars. Don't rush this step.
Use Parchment Paper Squares: Placing each shaped donut bar on a parchment paper square makes it so much easier to transfer them into the hot oil without misshaping them.
Cut The Bars Evenly: When cutting the dough into bars, aim for even 3"x3" squares so they fry up consistently and evenly — refer to the video if needed for guidance on the cutting technique.
Proof Until Puffy: Allow the shaped donut bars to proof for 30–45 minutes until visibly puffy before frying — under-proofed bars will be dense and won't fry up as light and fluffy.
Use A Thermometer For The Oil: The oil should be between 350F–365F before frying. Too low and the bars will absorb too much oil and be greasy; too hot and they'll brown too quickly on the outside before cooking through.
Let The Parchment Paper Release Naturally: After placing the donut bars in the oil, wait about 10–15 seconds until the parchment paper naturally releases before pulling it away — this keeps the bars perfectly shaped.
Fry In Small Batches: Fry only 2–3 donut bars at a time to keep the oil temperature consistent and give you enough room to flip them easily without crowding the pot.
Cool Almost Completely Before Glazing: Let the donut bars cool until they are just lightly warm to the touch before glazing and filling — glazing too soon will cause the glaze to slide right off.
Fill Generously: Pipe the blueberry compote filling into the donut bar until the center begins to puff up.
Warm The Glaze Before Dipping: If the vanilla bean glaze has thickened, warm it in the microwave for 15–20 seconds before glazing — a warm glaze flows more smoothly and coats the donut bars more evenly.
Add The Buttercream And Shortbread Crumbles Last: The whipped buttercream and shortbread crumbles are optional but highly recommended for decoration — add them only after the vanilla bean glaze has fully set on each donut bar.
How to Store Blueberry Pie Donut Bars:
Best Served Fresh: These blueberry pie donut bars are at their absolute best served warm and fresh the day they are made. The exterior is perfectly golden and slightly chewy and the vanilla bean glaze is at its most beautiful right after glazing.
Room Temperature (Short-Term): The glazed donut bars can sit covered at room temperature for up to 1 day, but the exterior will soften slightly as they sit.
Refrigerator: Store leftover donut bars in an airtight container in the refrigerator for up to 2 days. Keep in mind the texture will soften slightly after storing and the glaze may lose some of its crackly finish.
To Reheat: Warm individual donut bars in the microwave for 20–30 seconds until warmed through for the best soft, fluffy texture.
Freezer: Freeze individual unglazed and unfilled donut bars in a freezer-safe bag or container for up to 2 months. Thaw overnight in the refrigerator, reheat in the oven at 350F, and glaze and fill with a fresh batch of blueberry compote and vanilla bean glaze before serving.
Make Ahead (Blueberry Compote): The blueberry compote filling can be made in advance and stored in an airtight jar or container in the refrigerator for up to 1 week — this is a great way to save time the day of making the donut bars.
Make Ahead (Dough): The dough can be made, allowed to rise, and then stored covered in the refrigerator overnight. When ready to use, let it come to room temperature before rolling, cutting, and proofing the donut bars.
FAQs:
Q: Can I make the blueberry compote filling ahead of time?
A: Yes. The blueberry compote can be made in advance and stored in an airtight jar or container in the refrigerator for up to 1 week. This is a great way to save time the day of making the donut bars.
Q: Can I make the dough ahead of time?
A: Yes. The dough can be made, allowed to rise, and then stored covered in the refrigerator overnight. When ready to use, let it come to room temperature before rolling, cutting, and proofing the donut bars.
Q: Can I shape the donut bars ahead of time?
A: Yes. Shape the donut bars, place them on their parchment squares on a baking sheet, cover tightly, and store in the refrigerator overnight instead of doing the second proof. When ready to fry, let them sit at room temperature for 20–30 minutes while the oil heats up.
Q: Can I make the vanilla bean glaze ahead of time?
A: Yes. The vanilla bean glaze can be made in advance and stored in an airtight container at room temperature. Warm gently in the microwave for 15–20 seconds and whisk before using to bring it back to a smooth, pourable consistency.
Q: Can I use instant yeast instead of active dry yeast?
A: Yes. If using instant yeast, there is no need to activate it first — simply add it directly into the dough mixture and proceed with the recipe.
Q: Can I use all-purpose flour instead of bread flour?
A: Yes. All-purpose flour works as a substitute for bread flour, though bread flour gives the donut bars a slightly chewier, more structured texture that holds up beautifully during frying.
Q: Can I use frozen blueberries for the compote?
A: Yes. Both fresh and frozen blueberries work well for the blueberry compote filling. No need to thaw frozen blueberries before adding them to the saucepan.
Q: How do I know when the compote is done?
A: The compote is done when it has thickened enough that a trail is left behind as you stir and you can see the bottom of the pan. It will thicken further as it cools so remove it from the heat at this point.
Q: What oil is best for frying?
A: Any neutral oil with a high smoke point works well for frying these donut bars. Avocado oil is recommended for its neutral flavor and high smoke point.
Q: Can I freeze these donut bars?
A: Yes. Freeze individual unglazed and unfilled donut bars in a freezer-safe bag or container for up to 2 months. Thaw overnight in the refrigerator, reheat in the oven at 350F, and glaze and fill with a fresh batch of blueberry compote and vanilla bean glaze before serving.
Q: Are the whipped buttercream and shortbread crumbles necessary?
A: No. The whipped buttercream and shortbread crumbles are completely optional and are more for decoration and an extra layer of flavor and texture. The donut bars are absolutely delicious with just the vanilla bean glaze and blueberry compote filling.
Love these? Check out my other breakfast recipes:
Make sure to tag me @wellmadebykiley on Instagram and leave a review or comment if you make these blueberry pie donut bars. Happy baking!
