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Lemon Blueberry Crumb Bars
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Lemon Blueberry Crumb Bars

These Lemon Blueberry Crumb Bars combine a buttery crust and crumble topping with a vibrant blueberry filling infused with fresh lemon zest and juice. Sweet, tangy, and easy to make, they’re perfect for spring and summer desserts.
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Prep Time 15 minutes
Cook Time 50 minutes
Total Time 1 hour 5 minutes
Servings: 9 bars
Course: Dessert
Cuisine: American
Calories: 270
Ingredients Equipment Method Notes

Ingredients
  

  • 1 1/2 cups all-purpose flour
  • 3/4 cup granulated sugar
  • 1/4 tsp salt
  • 3/4 cup unsalted butter, cold and cubed
  • 3 cups fresh blueberries
  • 1/2 cup granulated sugar
  • 2 tbsp cornstarch
  • 1 tbsp lemon zest
  • 2 tbsp lemon juice
  • 1 tsp vanilla extract

Equipment

  • 8x8-inch baking pan
  • parchment paper
  • mixing bowls
  • pastry cutter or fork
  • oven

Method
 

  1. Preheat oven to 375°F and line an 8x8-inch baking pan with parchment paper.
  2. In a bowl, combine flour, sugar, and salt. Cut in cold butter until the mixture is crumbly.
  3. Press two-thirds of the mixture into the bottom of the pan to form the crust.
  4. Bake for 12–15 minutes until lightly golden.
  5. In another bowl, mix blueberries, sugar, cornstarch, lemon zest, lemon juice, and vanilla extract.
  6. Spread the filling evenly over the crust.
  7. Sprinkle the remaining crumb mixture over the top.
  8. Bake for 35–40 minutes until golden and bubbly. Cool completely before slicing.

Notes

Use fresh lemon juice and zest for the best flavor. Keep butter cold for a crumbly texture. Pre-bake the crust to prevent sogginess. Let bars cool completely before slicing to help the filling set. Frozen blueberries can be used without thawing.