Name: Blueberry Peach Crumble
Prep time: 15 min
Cook time: 40 min
Total time: 55 min
Yield: 8 servings
Cuisine: American
Ingredients: 2 cups blueberries; 2 1/2 cups peeled and sliced peaches, 5-6 peaches; 1 tablespoon fresh lemon juice; 1 teaspoon lemon zest; 1/4 teaspoon vanilla extract; 1/2 cup granulated sugar; 1/4 cup all-purpose flour; 1/2 cup all-purpose flour; 1/2 cup old-fashioned oats; 1/3 cup brown sugar; 1/4 cup granulated sugar; 1/2 teaspoon salt; 1 teaspoon ground cinnamon; 6 tablespoons cold butter, diced

This blueberry peach crumble combines juicy berries and sweet peaches under a buttery oat topping. An easy summer fruit dessert perfect for any occasion.

I've made a lot of fruit desserts over the years, but this blueberry peach crumble is the one I come back to every single summer. The combination of sweet, juicy peaches and tart blueberries gives you a filling that's balanced and bright, while the oat topping adds a buttery crunch that stays crisp even after baking. It's the kind of dessert that doesn't need much fuss, just good fruit, a simple crumble, and a hot oven. And when you spoon it warm over a scoop of vanilla ice cream? That's summer in a bowl.

Why You’ll Love This Blueberry Peach Crumble

The oat topping stays wonderfully crispy, thanks to cold butter worked in with your fingers, no pastry blender needed.
You can use fresh or frozen fruit interchangeably, which means you can make this blueberry peach crumble year-round.
It comes together in about 15 minutes of active time, then the oven does the rest. Perfect for lazy summer entertaining.

Key Ingredients for Blueberry Peach Crumble

Peaches: Choose ripe but firm peaches, they should yield slightly to pressure but still hold their shape when sliced. Freestone varieties are easiest to pit. If fresh peaches aren't available, frozen sliced peaches (thawed and drained) work well.
Blueberries: Fresh blueberries with a powdery bloom are the freshest; avoid any that are shriveled or leaking. Frozen blueberries can be used without thawing, just add them directly to the bowl.
Old-fashioned oats: Rolled oats give the topping a hearty, chewy texture. Quick oats will work but produce a softer, less crunchy crumble; avoid steel-cut oats, which won't soften enough during the bake time.

Kitchen Tools for Blueberry Peach Crumble

2-quart baking dish (ceramic, glass, or a 10-inch cast iron skillet)
Rimmed baking sheet (to catch drips)
Large mixing bowls (one for fruit, one for topping)
Whisk (for combining dry topping ingredients)

Tips for a Perfect Blueberry Peach Crumble

Let the fruit mixture sit for a few minutes after tossing it with the sugar and flour, this draws out the juices and helps the filling thicken as it bakes. When you mix the crumble topping, use cold butter straight from the fridge and work it into the dry ingredients with your fingertips until you have big, irregular clumps. A few pea-sized bits of butter left intact are fine; they'll melt and create pockets of crispness. Place the baking dish on a rimmed baking sheet before it goes into the oven to catch any bubbling juices, which makes cleanup a breeze.

Pro Tips for the Best Blueberry Peach Crumble

For the ripest flavor, pick peaches that give slightly when pressed near the stem, they should smell sweet but still be firm enough to slice without turning mushy. If your berries are particularly tart, add an extra tablespoon of sugar to the filling. To check doneness, look for the juices to bubble up around the edges and the topping to turn a deep golden brown, that usually takes the full 45 minutes, but ovens vary. If the topping browns too quickly, tent loosely with foil for the last 10 minutes.

How to Get a Perfectly Crisp Oat Topping

The secret to a crisp crumble topping is all in the butter. Cut very cold butter into small cubes and rub them into the dry ingredients with your fingertips until the mixture looks like coarse sand with some pea-sized clumps. Don't use a pastry blender or a fork, your hands are better at feeling when the butter is distributed. If the mixture feels warm or greasy, refrigerate it for 10 minutes before sprinkling over the fruit. Once baked, let the crumble rest for at least 10 minutes before serving; this allows the topping to set and stay crunchy rather than steaming itself soft.

Blueberry Peach Crumble Variations to Try

Swap half the peaches for nectarines or plums for a slightly different stone-fruit twist. If you want a nuttier topping, replace ¼ cup of the oats with chopped pecans or almonds. For a gluten-free version, use certified gluten-free oats and substitute the all-purpose flour with a 1-to-1 gluten-free baking blend, no other adjustments needed. If you prefer a less sweet dessert, cut the granulated sugar in the filling by a tablespoon or two, especially if your fruit is very ripe.

What to Serve with Blueberry Peach Crumble

A scoop of good vanilla ice cream is the classic pairing, the cold creaminess balances the warm, tangy fruit and crunchy topping. For a lighter option, drizzle with heavy cream or a spoonful of Greek yogurt. If you're serving this for brunch, a dollop of lightly sweetened whipped cream and a dusting of cinnamon turns it into a decadent morning treat.

How to Store Leftover Blueberry Peach Crumble

Cover the baking dish tightly with foil or transfer leftovers to an airtight container and refrigerate for up to 4 days. The topping will soften as it sits, but that's part of the charm, it becomes almost like a cobbler. Let it come to room temperature for about 20 minutes before serving, or warm individual portions in the microwave for 30 seconds.

Can You Freeze Blueberry Peach Crumble?

Yes, you can freeze the baked crumble. Let it cool completely, then wrap the dish tightly in double layers of plastic wrap and a layer of foil, or transfer to a freezer-safe container. Freeze for up to 3 months. Thaw overnight in the refrigerator, then reheat uncovered in a 350°F oven until warmed through and the topping re-crisps, about 15 minutes. Do not thaw at room temperature, as the fruit filling can become watery.

Best Ways to Reheat Blueberry Peach Crumble

For the crispiest topping, reheat individual servings in a 350°F oven for 10-12 minutes, or until the filling is hot and bubbly. The microwave works in a pinch, 30-second bursts on medium power, but the topping will turn soft. If you're reheating a whole dish, cover loosely with foil for the first 10 minutes to prevent over-browning, then uncover for the last 5 to restore some crunch.