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Easy Nectarine Blueberry Crumble Bars

nectarine blueberry crumble bars - featured image

A quick and easy summer snack featuring juicy nectarines and blueberries with a crunchy oat crumble topping. Perfect for a wholesome, fruity treat.

Ingredients

Scale
  • 1 ½ cups (180g) all-purpose flour
  • 1 cup (90g) rolled oats
  • ¾ cup (150g) light brown sugar, packed
  • ½ teaspoon ground cinnamon
  • ¼ teaspoon salt
  • ¾ cup (170g) unsalted butter, cold and cubed
  • 3 large nectarines, peeled and sliced (about 2 cups)
  • 1 ½ cups (200g) fresh blueberries
  • ½ cup (100g) granulated sugar
  • 2 tablespoons cornstarch
  • 1 tablespoon freshly squeezed lemon juice
  • 1 teaspoon vanilla extract (optional)

Instructions

  1. Preheat your oven to 350°F (175°C). Line a 9×9 inch baking pan with parchment paper, leaving some overhang for easy removal.
  2. In a large bowl, combine 1 cup of the flour, rolled oats, brown sugar, cinnamon, and salt. Add the cold, cubed butter. Using a pastry cutter or your fingers, cut the butter into the dry ingredients until the mixture resembles coarse crumbs with some pea-sized pieces (about 5 minutes).
  3. Press two-thirds of this crumble mixture firmly into the bottom of the prepared pan, creating an even layer.
  4. In a medium bowl, toss the sliced nectarines and blueberries with the granulated sugar, cornstarch, lemon juice, vanilla extract, and remaining ½ cup flour until evenly coated.
  5. Spread the fruit mixture evenly over the crumble base layer without pressing down.
  6. Sprinkle the remaining crumble mixture evenly over the fruit layer without pressing down.
  7. Bake in the preheated oven for 40-45 minutes, or until the top is golden brown and the fruit filling is bubbling around the edges.
  8. Cool completely in the pan on a wire rack for 1.5 to 2 hours to allow bars to set.
  9. Lift the bars out of the pan using the parchment paper overhang and cut into 16 squares or rectangles.

Notes

Keep the butter cold for a crumbly topping. Don’t overmix the crumble to keep pea-sized butter chunks. Use fresh, ripe fruit for best texture and flavor. Cool bars completely before cutting to avoid stickiness. Tent with foil if topping browns too quickly.

Nutrition

Keywords: nectarine, blueberry, crumble bars, summer snack, easy dessert, fruit bars, oat crumble, quick baking