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Brown Sugar Oat Blueberry Crumble

Brown Sugar Oat Blueberry Crumble layers juicy frozen blueberries under a crisp, golden blanket of buttery oats and brown sugar. Warm spices like cinnamon and a hint of lemon zest brighten each bite, making it perfect for casual dinners, potlucks, or a cozy weekend dessert. Serve it warm with a scoop of vanilla ice cream for contrast.

  • Prep15 mins
  • Cook40 mins
  • Serves8
  • DifficultyEasy
Brown Sugar Oat Blueberry Crumble
  1. 1

    Preheat the oven to 375 degrees F (190 degrees C). Grease a baking dish.

  2. 2

    Make the filling: In a large bowl, combine the blueberries, brown sugar, and lemon zest. Transfer the filling to the prepared baking dish.

  3. 3

    Make the topping: In a medium bowl, combine the brown sugar, flour, oats, butter, cinnamon, salt, and nutmeg; rub the mixture between your fingers until it becomes crumbly. Sprinkle the topping evenly over the blueberries.

  4. 4

    Bake in the preheated oven until the crumble is lightly browned and bubbly, 40 to 45 minutes. Serve warm.