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Lemon Raspberry Swirl Bars: A Refreshing and Delicious Dessert Recipe

4.7 from 128 reviews

Lemon Raspberry Swirl Bars combine the tartness of fresh lemon with the sweet, vibrant flavor of raspberries in a tender, buttery bar. These delightful bars are easy to make, perfect for a quick dessert or snack, and bring a refreshing, colorful twist to any occasion. With a smooth, textured base and a beautiful raspberry swirl, they offer a delightful balance of tangy and sweet in every bite.

Ingredients

Scale

Base Ingredients

  • 1 cup all-purpose flour
  • 1/2 cup granulated sugar
  • 1/4 teaspoon salt
  • 1/2 cup unsalted butter, melted
  • 1 large egg
  • 1 teaspoon vanilla extract

Raspberry Swirl

  • 1/2 cup fresh raspberries (or frozen, thawed)
  • 1/4 cup fresh lemon juice
  • 1 tablespoon lemon zest

Topping

  • 1/4 cup powdered sugar, for dusting

Instructions

  1. Preheat and Prepare: Preheat your oven to 350°F (175°C). Grease an 8×8-inch baking dish or line it with parchment paper to make removing the bars easier after baking.
  2. Mix the Base Batter: In a medium bowl, combine the all-purpose flour, granulated sugar, and salt. Stir well to blend. Then add the melted unsalted butter, large egg, and vanilla extract. Mix thoroughly until the batter is smooth and well combined.
  3. Spread the Batter: Pour the batter into the prepared baking dish and use a spatula to spread it evenly, creating a level base for your bars.
  4. Prepare Raspberry Mixture: In a separate bowl, gently mash the fresh raspberries with a fork until slightly chunky. Stir in the fresh lemon juice and lemon zest to combine the flavors.
  5. Create the Swirl: Drop spoonfuls of the raspberry mixture evenly over the batter in the baking dish. Using a knife or toothpick, gently swirl the raspberry mixture through the batter to create a marbled pattern.
  6. Bake to Perfection: Place the dish in the preheated oven and bake for 25 to 30 minutes. Check doneness by inserting a toothpick into the center; it should come out clean when the bars are ready. The edges will turn golden brown, and a pleasant aroma will fill your kitchen.
  7. Cool and Finish: Allow the bars to cool in the pan for about 10 minutes. If you used parchment paper, carefully lift the bars out of the pan and transfer them to a wire rack to cool completely. Once cooled, dust the top with powdered sugar before slicing into squares and serving.

Notes

  • For extra lemony flavor, add 1 teaspoon of lemon extract to the base batter.
  • Blueberries can be substituted for raspberries if preferred.
  • These bars are delicious served chilled, especially on warm days.
  • Use room temperature ingredients to achieve a smoother batter texture.
  • Do not overmix the batter; some lumps are okay to keep the bars tender.
  • Storage: Keep in an airtight container at room temperature for up to 3 days, refrigerate up to a week, or freeze up to 3 months.
  • For a gluten-free version, substitute all-purpose flour with a gluten-free flour blend.
  • To make vegan, replace the egg with a flaxseed egg (1 tbsp ground flaxseed + 2.5 tbsp water) and use coconut oil instead of butter.

Keywords: lemon raspberry bars, lemon dessert, raspberry swirl bars, easy lemon bars, homemade lemon bars, tart and sweet dessert