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Easy Lemon Blueberry Streusel Bars with Oat Topping

Blueberry Lemon Streusel Bars

Sara Coleman
These vibrant bars feature a buttery shortbread crust, a zesty lemon-infused blueberry filling, and a crunchy golden oat topping. They are the perfect balance of tart and sweet, making them an ideal summer dessert or tea-time treat.
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Prep Time 20 minutes
Cook Time 45 minutes
Total Time 1 hour 5 minutes
Servings 12 servings
Calories 245 kcal

Ingredients
  

Ingredients

  • 1.5 cups all-purpose flour spooned and leveled
  • 0.5 cup rolled oats old-fashioned
  • 0.75 cup unsalted butter cold and cubed
  • 0.66 cup granulated sugar divided
  • 0.25 cup light brown sugar packed
  • 2 cups fresh blueberries washed and dried
  • 1 tbsp lemon zest from about 2 lemons
  • 2 tbsp lemon juice freshly squeezed
  • 1 tsp cornstarch for thickening
  • 0.25 tsp salt fine sea salt

Notes

Storage: Store in an airtight container in the refrigerator for up to 5 days. Make-ahead: These bars can be frozen for up to 3 months; thaw in the fridge before serving. Variation: Replace blueberries with raspberries or blackberries for a different flavor profile.