Triple Berry Oatmeal Crumble Bars


These delicious berry bars are perfect for breakfast, dessert or a snack. It’s triple berry magic (blueberries, raspberries and blackberries) topped with walnut oatmeal crumble. The great thing about fruit and crumb bars is that you can substitute basically any fruit you have on hand or whatever fruits are in season and it will still be a satisfying seasonal dessert. These will disappear before your eyes!


Triple Berry Oatmeal Crumble Bars

  • Difficulty: easy
  • Print


For the crumb topping:

  • 3 tablespoons flour
  • 2 tablespoons old fashion oats
  • 1/4 cup brown sugar, packed
  • 1/2 teaspoon ground cinnamon
  • Pinch of sea salt
  • 4 tablespoons cold unsalted butter, cut into small chunks
  • 3/4 cup finely chopped walnuts

For the triple berry oatmeal bars:

  • 1 cup blueberries
  • 1 cup raspberries
  • 1/2 cup blackberries
  • 2 tablespoons white sugar
  • 2 teaspoon cornstarch
  • 3/4 cup whole wheat flour
  • 3/4 cup old-fashioned oats
  • 1 teaspoon baking soda
  • 1/2 teaspoon baking powder
  • 1/2 teaspoon ground cinnamon
  • pinch sea salt
  • 1/3 cup coconut oil, or vegetable oil or canola oil
  • 1 teaspoon vanilla extract
  • 1/3 maple syrup
  • 1 large egg, beaten
  • 3 tablespoons plain Greek yogurt


  1. Preheat oven to 350 degrees F. Lightly coat an 8×8 inch baking dish with a nonstick spray.
  2. In a small bowl, combine berries, sugar and cornstarch; set aside.
  3. In a medium-sized bowl, mix together the dry ingredients. In a large bowl, blend the oil, egg, yogurt, maple syrup and vanilla.
  4. Mix the dry ingredients in with the wet ingredients until combined. Do not overmix. Fold in the walnuts.
  5. Spread the batter into the prepared baking dish. Spread berry mixture evenly over the bottom layer.
  6. Make the topping: In a bowl combine the flour, brown sugar, cinnamon, and salt. Pinch in the butter, until it looks like coarse crumbs. Mix in the chopped nuts.
  7. Sprinkle the mixture over the berries. Bake for 40-45 minutes, or until the top is browned. Let it cool before serving.
  8. Serve with fresh berries and a side of yogurt.

10 thoughts on “Triple Berry Oatmeal Crumble Bars

  1. Pingback: Berry Crumble with Orange Blossom Sauce | Ocean View Kitchen

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