Rustic Blackberry Galette with Basil Sugar
This Blackberry Galette is summer in pastry form. Fresh blackberries get tossed with lemon and a basil-infused sugar that adds a subtle herbal depth you won’t find in any other version; the kind of detail that makes people ask what they are tasting without being able to place it. The whole thing gets wrapped in a buttery, flaky homemade pie dough that is more forgiving than it looks, baked until the edges are golden and shatteringly crisp, and the center is bubbling with juicy blackberry filling. Serve it straight out of the oven with a scoop of vanilla ice cream melting into the fruit, and you have the best dessert of the summer.
Why I Love Galettes (and You Might Too)
Galettes are one of my most-made recipes across every season — savory with courgette in summer, heirloom tomatoes when the market is overflowing, and sweet with whatever fruit is at its peak. I grow basil in my garden every summer, and this recipe came out of wanting to use it somewhere unexpected, not in a pasta or a pesto, but in something sweet where it could do something genuinely interesting. Infusing the sugar with fresh basil before it ever touches the blackberries is what makes this version different from every other blackberry galette out there. And because I love the rustic, forgiving nature of a galette over a proper pie, this is the dessert I come back to all season long. If you love galettes, you will also want to try my Heirloom Tomato Galette with Ricotta, Courgette Galette, and Cherry Tomato Galette.
Ingredient Information
Three things matter most here. First, the basil; use fresh, fragrant leaves that smell sweet and slightly peppery. Limp or darkened basil won’t infuse the sugar properly, and you will lose the whole point of this recipe. Second, the butter for the dough must be cold; ice cold, straight from the fridge, and cut into cubes right before it goes in. Cold butter is what creates those distinct flaky layers as it steams in the oven; warm butter just blends in and gives you a crumbly, dense crust instead. Third, don’t skip the lemon; both the zest and the juice go into the filling, and they are what keep the whole thing from tasting flat and one-dimensional. The lemon brightens the blackberries and beautifully balances the basil sugar’s herbal note.
How to Make My Blackberry Galette Recipe
- Prepare the Dough: In a large bowl, combine flour, 1 tablespoon sugar, and ½ teaspoon salt. Cut in the cold butter using a pastry cutter or your fingers until it resembles the size of small peas. Gradually add ¼ cup ice water and mix until a shaggy dough forms. Shape into a disc, wrap in plastic wrap, and chill for 30 minutes.
2. Make the Basil Sugar: In a small bowl, rub together ⅓ cup sugar, chopped basil, and the zest of 1 lemon until fragrant.
3. Set aside.
4. Make the Blackberry Filling: In another bowl, combine fresh blackberries, lemon juice, cornstarch, vanilla, pinch of salt, and half the basil sugar. Let sit 10–15 minutes.
5. Assemble the Galette: Preheat oven to 400°Fahrenheit (200°C). On a clean work surface, roll dough into a large circle (about 12 inches) on a lightly floured surface.
6. Transfer to a parchment-lined baking sheet. Sprinkle 1 teaspoon basil sugar in the center of the dough, then add blackberry mixture, leaving a 2-inch border.
7. Fold edges inward, pleating as you go. Right before baking the galette, you’ll brush the crust with heavy cream or milk using a pastry brush. Sprinkle with turbinado sugar.
8. Bake in a preheated oven for 35–40 minutes until deep golden brown and bubbling. Let the blackberry galette cool slightly before slicing. It’s best to let it set for about 10-15 minutes, trust me! It will still be warm.
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Rustic Blackberry Galette with Basil Sugar
Equipment
- large mixing bowl
- Small bowl
- Pastry cutter or your hands
- rolling pin
- parchment paper
- Baking Sheet
Ingredients
For the Dough:
- 1 ¾ cups all-purpose flour (213g)
- 10 tablespoons unsalted butter (142g) cold and cut into cubes
- ¼ cup cold water (60ml)
- 1 tablespoon granulated sugar
- ½ teaspoon salt
For the Basil-Infused Sugar:
- ⅓ cup granulated sugar
- 1 tablespoon fresh basil finely chopped
- Zest of 1 lemon
For the Blackberry Filling:
- 2 ½ cups fresh blackberries
- 1 tablespoon lemon juice
- 1 tablespoon cornstarch
- 2 tablespoons honey or brown sugar
- 1 teaspoon vanilla extract
- Pinch of salt
For Assembly:
- 1 tablespoon heavy cream or milk
- 1 tablespoon turbinado sugar
Instructions
Make the Dough:
- In a large bowl, whisk together the flour, sugar, and salt.
- Cut in the cold butter using your fingers or a pastry cutter until the mixture resembles coarse crumbs.
- Gradually drizzle in cold water, mixing just until the dough comes together.
- Shape into a disc, wrap in plastic, and chill for at least 30 minutes.
Make the Basil-Infused Sugar:
- In a small bowl, combine the granulated sugar, chopped basil, and lemon zest.
- Rub together with your fingers until the sugar is fragrant and slightly damp.
Make the Blackberry Filling:
- In a bowl, toss the blackberries with the lemon juice, cornstarch, vanilla, a pinch of salt, and half of the basil sugar.
- Let sit for 10–15 minutes so the flavors meld.
Assemble the Galette:
- Preheat oven to 400°Fahrenheit (200°Celsius). Line a baking sheet with parchment paper.
- Roll the chilled dough into a 12-inch circle on a floured surface.
- Transfer to the prepared baking sheet.
- Sprinkle the center with 1 teaspoon of the basil sugar.
- Spoon the blackberry mixture into the center, leaving a 2-inch border.
- Fold the edges over the filling, pleating as you go.
Bake the Galette:
- Brush the crust with heavy cream or milk and sprinkle with turbinado sugar.
- Bake for 30–35 minutes, until the crust is golden and the filling is bubbling.
Let It Rest:
- Allow the galette to cool for 10–15 minutes before slicing and serving.
Notes
- Use fresh, fragrant basil. The basil sugar infusion is the whole point of this recipe. Limp or darkened basil won’t infuse properly; you want leaves that are bright green and smell sweet and slightly peppery straight off the plant.
- Keep the butter ice cold. Cut it into cubes and keep it in the fridge right up until it goes into the dough. Cold butter is what creates the flaky, shatteringly crisp layers that make this crust worth making from scratch.
- Don’t skip the lemon. Both the zest and the juice go into the filling and they are what keeps the blackberries bright and the basil from feeling heavy. It is a small addition that makes a big difference.
- Don’t stress about the shape. A galette is meant to be rustic and freeform. Uneven pleats, a lopsided circle, a few cracks in the dough; none of it matters once it comes out of the oven golden and bubbling. Perfection is not the point.
- Storage: Store leftovers loosely covered at room temperature for up to 1 day, or in the fridge for up to 3 days. Reheat in a 300°F oven for 10 minutes to re-crisp the crust. Do not microwave or the crust will go soggy.