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Easy Triple Berry Crumble With Oats

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This easy triple berry crumble is a comforting dessert featuring a juicy mix of berries topped with a crisp, buttery oat crumble. It’s quick to prepare, uses simple ingredients, and is perfect served warm with ice cream or whipped cream.

  • Author: Sophia
  • Prep Time: 10 minutes
  • Cook Time: 40–45 minutes
  • Total Time: 50 minutes
  • Yield: 6–8 servings
  • Category: Dessert
  • Method: Baking
  • Cuisine: American
  • Diet: Vegetarian

Ingredients

  • Oat Crumble Topping:
  • ⅔ cup all-purpose flour
  • ⅔ cup old fashioned rolled oats
  • ¾ cup sugar
  • ½ to 1 teaspoon ground cinnamon
  • ½ teaspoon salt
  • ½ cup cold butter, cubed
  • Berry Filling:
  • 34 cups mixed berries (raspberries, blackberries, blueberries; fresh or frozen)
  • 1 tablespoon cornstarch
  • 1 tablespoon lemon juice
  • Pinch of salt

Instructions

  1. Preheat your oven to 375 °F (190 °C). Grease or butter the bottom and sides of a 9×13-inch baking dish.
  2. In a bowl, whisk together the flour, oats, sugar, cinnamon, and salt.
  3. Add the cold cubed butter to the dry ingredients and use your fingers or a pastry cutter to work it in until the mixture resembles coarse crumbs. Set aside.
  4. In the prepared baking dish, combine the mixed berries, cornstarch, lemon juice, and a pinch of salt. Gently toss to coat evenly.
  5. Spread the oat crumble topping evenly over the berry mixture to form a thick layer.
  6. Bake for 40–45 minutes, or until the topping is golden brown and the berry mixture is bubbling.
  7. Let the crumble cool slightly before serving warm, ideally with ice cream or whipped cream.

Notes

  • Use brown sugar instead of white sugar for a deeper flavor.
  • Try adding chopped nuts to the crumble topping for extra crunch.
  • Swap in other fruits like peaches, apples, or cherries.
  • For gluten-free, use a GF flour blend and certified gluten-free oats.
  • Prepare the topping ahead, but assemble and bake just before serving for best texture.
  • To re-crisp topping after reheating, broil for 1–2 minutes (watch carefully).

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