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berry crumble in a bowl with a crispy oat crumble and bubbling berries underneath. topped with a scoop of vanilla icecream

Easy Triple Berry Crumble With Oats

  • Author: Zoha


An easy and delicious triple berry crumble with a crispy oat topping which comes together in under an hour!


Oat crumble topping:

  • 2/3 cup flour
  • 2/3 cup oats
  • 3/4 cup sugar
  • 1/2 to 1 tsp cinnamon
  • 1/2 tsp salt
  • 1/2 cup butter

Triple Berry filling:

  • 3-4 cups mixed berries of choice (fresh or frozen, about 1 lb) - chop roughly if needed, although I didn't chop them
  • 1 tbsp cornstarch
  • 1 tbsp lemon juice
  • Pinch of salt


  • Pre-heat oven to 375F and brush butter on the bottom of a 9x13" casserole dish (ceramic baking dish)
  • Mix the flour, oats, sugar, cinnamon and salt in a glass bowl and whisk to ensure there are no lumps. Add the cold cubed butter and rub it in with your hands until the mixture resembles large bread crumbs
  • Add the berries, cornstarch, lemon juice and salt in the casserole dish and mix until combined
  • Top the berries with the crumble, spreading evenly
  • Bake for 40-45 minutes until the crumble is golden and crispy
  • Serve warm, ideally with vanilla ice cream or cold whipped cream!