If you’re looking for a dessert that perfectly balances sweet and tart while showing off a beautiful rustic charm, this Rhubarb Blueberry Galette Recipe is exactly what you need. It combines the bright juiciness of blueberries with the tangy punch of fresh rhubarb, all wrapped up in a flaky, golden crust that’s both casual and stunning. This galette is a breeze to pull together, with minimal fuss but maximum flavor that will have everyone asking for seconds. It’s ideal for sharing, celebrating seasonal produce, or simply treating yourself to a little slice of summer any time you want. Once you try this Rhubarb Blueberry Galette Recipe, it might just become your favorite way to enjoy these vibrant fruits.

Ingredients You’ll Need
Gathering the ingredients for this galette is wonderfully simple, but each one plays an essential role in creating that perfect balance of texture, sweetness, and spice. From the fresh rhubarb’s tang to the warm notes of cardamom, every ingredient enhances the final flavor and appearance of this special dessert.
- 3/4 pound rhubarb, chopped (about 3 cups): The backbone of the filling, providing a lovely tartness and vibrant pink color.
- 1 cup blueberries: Adds natural sweetness and juicy bursts that complement the rhubarb.
- 3/4 cup granulated sugar: Sweetens the fruit mixture just enough to balance the tart flavors.
- 1 tablespoon corn starch: Thickens the filling so it holds together beautifully without being runny.
- 1/2 teaspoon cardamom: Introduces a warm, fragrant spice that elevates the fruit’s taste wonderfully.
- 1 pie crust: A flaky, buttery foundation that makes this galette delightfully rustic and easy to assemble.
- 1 egg, beaten: For brushing over the crust edges to get a gorgeous golden shine when baked.
- Pinch of cinnamon sugar or demerara sugar: Adds a final touch of sweet crunch on top of the crust edges.
How to Make Rhubarb Blueberry Galette Recipe
Step 1: Preheat and Prepare
Start by heating your oven to 400 degrees Fahrenheit. This high temperature helps the crust achieve that perfect golden brown, crispy texture, while the fruit inside bubbles with sweet and tart juiciness.
Step 2: Mix the Filling
In a large mixing bowl, combine the chopped rhubarb, blueberries, granulated sugar, corn starch, and cardamom. Stir gently until everything is well coated and evenly mixed. This mixture will be bursting with flavor, and the corn starch ensures a lovely, thick consistency that won’t run all over the crust.
Step 3: Prepare the Crust
Roll out your pie dough on a piece of parchment paper placed on a baking sheet. If you’re using pre-made dough, just spread it out gently to about a 12-inch round. The parchment keeps cleanup easy and allows you to transfer the galette effortlessly after baking.
Step 4: Add the Filling
Carefully spoon the rhubarb and blueberry mixture onto the center of the pie crust, leaving about a 1 1/2 inch border all around. This border is key because it folds up to hold in the fruit and create that beautiful rustic edge that galettes are known for.
Step 5: Fold and Finish the Edges
Gently fold the edges of the dough up and over the fruit filling, creating pleats as you go to keep the crust snug around the fruit. Brush the exposed crust edges with your beaten egg to encourage a shiny, golden finish when baked. Then sprinkle a pinch of cinnamon sugar or demerara sugar on top for a subtle sweet crunch and added visual appeal.
Step 6: Bake to Perfection
Place the baking sheet in your preheated oven and bake the galette for about 40 minutes. You’ll want to watch for the crust to turn a lovely golden brown and the fruit bubbling gently underneath. This means your galette is perfectly cooked, with a flaky crust and a luscious filling.
Step 7: Cool Before Serving
Once out of the oven, let the galette cool for about 10 minutes. This resting time allows the fruit filling to set slightly so it won’t spill out when slicing, and it makes the galette easier to handle while still warm and inviting.
How to Serve Rhubarb Blueberry Galette Recipe

Garnishes
A sprinkle of freshly chopped mint or a dollop of freshly whipped cream adds a refreshing contrast to the warm tartness of the galette. Vanilla ice cream is a classic pairing that melts beautifully over the warm fruit, making each bite extra indulgent.
Side Dishes
For a more complete dessert spread, serve slices alongside a simple vanilla custard or a small serving of lemon curd. These complement the rhubarb and blueberry flavors wonderfully without overpowering the delicate spice notes.
Creative Ways to Present
Try placing individual slices on pretty dessert plates with a drizzle of honey or a dusting of powdered sugar. You can also use mini ramekins to make personal-sized galettes for parties—this Rhubarb Blueberry Galette Recipe adapts beautifully to smaller portions, making it fun and elegant.
Make Ahead and Storage
Storing Leftovers
Your galette leftovers keep well covered in the refrigerator for up to three days. Be sure to wrap it tightly or store in an airtight container to maintain that flaky crust texture and keep the fruit fresh and juicy.
Freezing
If you want to freeze the galette, it’s best to do so before baking. Assemble the galette and freeze it uncovered on a tray until firm, then wrap it well in plastic wrap and foil. When ready to bake, just pop it in the oven from frozen, adding a few extra minutes to the baking time.
Reheating
To enjoy your leftover galette warm, reheat slices in a 350 degree Fahrenheit oven for about 10-15 minutes. This method helps restore the flaky crust and warm the filling without making it soggy.
FAQs
Can I use frozen blueberries instead of fresh?
Absolutely! Frozen blueberries work well and are a great option when fresh ones aren’t in season. Just be sure to thaw and drain any excess liquid before mixing with the other filling ingredients to prevent sogginess.
What if I don’t have cardamom? Can I substitute it?
If cardamom isn’t available, you can substitute with a pinch of ground cinnamon or nutmeg for a warm spice note. While the flavor won’t be exactly the same, these spices complement the rhubarb and blueberry beautifully.
Is it possible to make the dough from scratch?
Definitely! Making your own pie crust adds a lovely homemade touch. Use a basic butter pie crust recipe, chilling the dough well before rolling it out for the best flaky texture in your Rhubarb Blueberry Galette Recipe.
How tart will the galette be?
The rhubarb provides a natural tartness that is balanced by the sweetness of the blueberries and sugar. If you prefer sweeter desserts, you can adjust the sugar amount slightly, but part of this recipe’s charm is its refreshing tart-sweet harmony.
Can I prepare the galette filling in advance?
Yes, you can prepare the fruit filling a day ahead and store it in the fridge. This actually allows the flavors to meld wonderfully. Just make sure to drain any excess liquid if it accumulates before assembling your galette.
Final Thoughts
This Rhubarb Blueberry Galette Recipe is a delightful celebration of fresh fruit and simple baking that never fails to impress. Its rustic charm, combined with that perfect balance of tart, sweet, and spice, makes it a truly special dessert to share with friends and family. Whether you’re new to galettes or a seasoned pro, this recipe is an absolute must-try that will brighten your dessert table and your mood. Give it a go and let those vibrant flavors take center stage!
Print
Rhubarb Blueberry Galette Recipe
- Prep Time: 15 minutes
- Cook Time: 40 minutes
- Total Time: 55 minutes
- Yield: 6 servings
- Category: Dessert
- Method: Baking
- Cuisine: American
Description
This Rhubarb Blueberry Galette is a rustic and delightful dessert featuring a flaky pie crust filled with a sweet and tart mixture of rhubarb and blueberries. Enhanced with cardamom and finished with a crunchy cinnamon sugar topping, it’s the perfect treat for spring or summer gatherings.
Ingredients
Fruit Filling
- 3/4 pound rhubarb, chopped (about 3 cups)
- 1 cup blueberries
- 3/4 cup granulated sugar
- 1 tablespoon corn starch
- 1/2 teaspoon cardamom
Crust and Topping
- 1 pie crust (store-bought or homemade)
- 1 egg, beaten
- Pinch of cinnamon sugar or demerara sugar
Instructions
- Preheat Oven: Preheat your oven to 400 degrees Fahrenheit to ensure it reaches the right temperature for baking the galette evenly.
- Prepare Filling: In a mixing bowl, combine the chopped rhubarb, blueberries, granulated sugar, corn starch, and cardamom. Stir gently but thoroughly to mix all ingredients evenly.
- Prepare Dough: Roll out your pie dough on a clean surface or use a pre-rolled pie crust. Transfer it onto a parchment-lined baking sheet for easy handling and clean-up.
- Add Filling: Spoon the fruit mixture onto the center of the pie crust, making sure to leave a generous 1 1/2 inch border all around for folding.
- Fold Edges: Carefully fold the edges of the pie crust up and over the filling in pleats, creating a rustic edge. Brush the crust edges with the beaten egg to promote browning and shine. Sprinkle the edges lightly with cinnamon sugar or demerara sugar for extra crunch and flavor.
- Bake: Place the assembled galette in the preheated oven and bake for approximately 40 minutes, or until the crust is golden brown and the filling is bubbly.
- Cool and Serve: Remove from the oven and allow the galette to cool for about 10 minutes to let the filling set slightly before slicing and serving.
Notes
- For a crisper crust, chill the pie crust before rolling out.
- Adjust sugar amount based on the sweetness of your fruit.
- Serve warm or at room temperature, optionally with vanilla ice cream or whipped cream.
- You can substitute cardamom with cinnamon or nutmeg if desired.

