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+ servings
blackberry crumble in a baking dish with a spoon and vanilla ice cream

Blackberry Crumble

This blackberry crumble is perfectly sweet with an irresistible crumb topping! Slightly sour fresh blackberries are balanced out with a touch of sugar, then topped with a buttery oat crumble. Serve this blackberry crumble warm with a scoop of cold vanilla ice cream for a delicious summertime (or anytime) dessert!
Course Dessert
Cuisine American
Keyword fruit dessert, potluck, summer recipes
Prep Time 10 minutes
Cook Time 40 minutes
Total Time 50 minutes
Servings 8 servings
Calories 354kcal


  • Large bowl
  • 9x13 baking dish


For the Blackberry Filling

  • 8 cups fresh blackberries see Notes
  • ½ cup sugar
  • ¼ cup all-purpose flour

For the Crumb Topping

  • 1 cup all-purpose flour
  • ½ cup oats
  • ¾ cup brown sugar
  • 6 tablespoons butter melted


  • Preheat oven to 375° Fahrenheit.
  • Mix all filling ingredients together in a large bowl, then transfer to a 9x13-inch baking dish.
  • Mix all crumb topping ingredients together in a bowl and spread mixture over top of the filling.
  • Bake for 40-45 minutes or until golden brown.


  • Blackberries: Be sure to use fresh, not frozen, blackberries in this recipe. If frozen is your only option, you'll need to increase the flour to about 1/2 cup to compensate for the additional liquid they will release when baked.
  • Make it Vegan: Use vegan butter or coconut oil in place of the melted butter.
  • Make it Sugar-Free: Use your favorite sugar-free replacement, such as granular Swerve and Brown Swerve, in place of the sugar and brown sugar.
Recipe yields approximately 8 servings. Nutritional values shown are general guidelines and reflect information for 1 serving, not including vanilla ice cream. Actual macros may vary slightly depending on specific brands and types of ingredients used.
To determine the weight of one serving, prepare the recipe as instructed. Weigh the finished recipe, then divide the weight of the finished recipe (not including the weight of the container the food is in) by 8. Result will be the weight of one serving.


Serving: 1serving | Calories: 354kcal | Carbohydrates: 65g | Protein: 5g | Fat: 10g | Saturated Fat: 6g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 2g | Trans Fat: 1g | Cholesterol: 23mg | Sodium: 83mg | Potassium: 303mg | Fiber: 9g | Sugar: 40g | Vitamin A: 571IU | Vitamin C: 30mg | Calcium: 67mg | Iron: 2mg | Net Carbs: 56g