Apple Blueberry Crumble

This Apple Blueberry Crumble is a super easy dessert recipe, perfect to transition from summer to fall baking. It uses apples just as they come into season, and blueberries just as they are at the tail end of their peak, so it's a perfect combination of tart and sweet. And with a buttery, crunchy oat crumble topping, this recipe is so, so good.

5 from 1 vote

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Prep Time: 20

Cook Time: 40

Total Time: 1

Servings: servings

Ingredients

For the filling:

4 granny smith apples sliced ¼-1/8" thin
1 cup fresh blueberries
1 teaspoon cinnamon
1 tablespoon lemon juice
¼ cup granulated sugar
¼ teaspoon kosher salt

For the crumble topping:

½ cup light brown sugar
1 cup old fashioned rolled oats
½ cup all purpose flour
½ teaspoon cinnamon
½ teaspoon kosher salt
½ cup unsalted butter cold, cubed (one stick)

Instructions

Preheat your oven to 350℉.
In a large bowl, combine all the ingredients for the filling (apples, blueberries, cinnamon, lemon juice, sugar, salt) and toss to combine well.
Carefully transfer the apple mixture into a baking dish and rearrange to fill as many gaps as you can so it lays in a somewhat even layer.
In a large bowl, combine all ingredients for the crumble topping (light brown sugar, oats, flour, cinnamon, salt, butter). Work the butter into the mixture (using your hands is easiest) until the ingredients are all hydrated and you’re able to squeeze the mixture together and it clumps.
Sprinkle the crumble on top of the fruit in the baking dish.
Bake 35-40 minutes, until the crumble is deeply golden brown and the edges are bubbling. Serve warm with a scoop of ice cream.

Notes

I like to use an oval baking dish because I like how it looks, but a 9x9 or 8x8 square baking dish also works great.
Use cold butter for the crumble topping, it’ll melt a bit as you work it together with your hands, but the colder the better so the topping gets as crisp as possible.
- You can even put the crumble topping back in the fridge for 15-20 minutes before putting it on the fruit and baking it to get an extra crispy topping.
Squeeze the crumble topping together with your hands as you add it to the baking dish, this will create really nice crispy clusters
Let the crumble cool for 10-15 minutes before adding the ice cream on top otherwise it’ll just immediately melt and become an ice cream pool.
You may be tempted to crank the oven temp a bit to have the crumble ready sooner, but please avoid doing that. You’ll scorch the top before the filling has a chance to break down and get soft and saucy.
Always serve with scoops of vanilla ice cream. Or really any ice cream you love – buttermilk, sweet cream, cinnamon, blueberry jam, caramel, etc.

Nutrition Estimate

Course: Dessert

Cuisine: American

Keyword: apple crumble, Apples, blueberries, crumble

Author: Haley