This blueberry peach galette recipe is the easiest way to turn a handful of ripe summer fruit into a bakery-worthy dessert. A buttery, flaky crust gets folded around juicy peaches and plump blueberries, then baked until golden and bubbling. No pie plate, no fancy crimping, and no stress. Just a rustic, free-form tart that looks like you fussed over it for hours.
In a large mixing bowl, whisk together the flour, sugar, and salt. Cut the cold butter into the flour with a pastry cutter until the mixture resembles coarse crumbs with pea-sized butter pieces remaining.
Add ice water one tablespoon at a time, tossing with a fork until the dough clumps together when pressed. Shape into a flat disc, wrap in plastic, and refrigerate for at least 30 minutes.
Slice peaches 1/4-inch thick and place in a bowl with blueberries. In a small bowl, whisk together sugar, cornstarch, lemon juice, lemon zest, cinnamon, and salt. Pour over fruit and toss gently to coat.
Preheat oven to 400°F and line a baking sheet with parchment. Roll the chilled dough into a 12-inch circle about 1/8-inch thick on a floured surface. Transfer to the prepared baking sheet.
Spoon the fruit filling into the center of the dough, leaving a 2-inch border. Fold the edges up and over the fruit, overlapping slightly as you go. Brush the folded crust with egg wash and sprinkle with turbinado sugar.
Bake for 35-40 minutes until the crust is deep golden brown and the filling is bubbling thickly in the center. Tent with foil if edges brown too quickly. Cool on the baking sheet for at least 15 minutes before serving.
Notes
Fruit selection: Choose peaches that are ripe but still firm so they hold their shape after baking. Overripe peaches will become mushy.
Keep it cold: Keep butter and water as cold as possible throughout the process. Warm butter melts before baking and leads to a tough crust.
Don't skip the cornstarch: It thickens the fruit juices so the filling isn't soupy. This is essential for a non-soggy crust.
Chill before baking: If your kitchen is warm, chill the assembled galette for 10 minutes before baking to help the crust hold its folds.
Frozen fruit option: Thaw and drain frozen fruit well, then pat dry with paper towels before using to remove excess liquid.
Variations: Swap peaches for nectarines or plums, or use raspberries or blackberries instead of blueberries. Add 1/4 teaspoon almond extract for a nutty note.
Storage: Store leftovers loosely covered at room temperature for up to 1 day, or refrigerate in an airtight container for up to 3 days.
Reheating: Reheat individual slices in a 300°F oven for about 10 minutes to re-crisp the crust. Avoid microwaving as it will soften the crust.
Make ahead: The unbaked dough disc can be refrigerated for up to 2 days or frozen, wrapped tightly, for up to 2 months.
Baking tip: If the bottom crust seems pale, bake on the lowest oven rack for the last 10 minutes to ensure it cooks through.