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Lemon Blueberry Tart

Lemon Blueberry Tart

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  • Author: Molly
  • Prep Time: 30 minutes
  • Cook Time: 35 minutes
  • Total Time: 1 hour 5 minutes (plus chilling)
  • Yield: 8 servings 1x
  • Category: Dessert
  • Method: Baking
  • Cuisine: American
  • Diet: Vegetarian

Description

This Lemon Blueberry Tart features a buttery shortbread crust filled with a creamy lemon filling and swirled with a naturally sweet blueberry sauce. It’s a bright, refreshing dessert that balances tangy citrus with fresh berry flavor, perfect for spring and summer occasions.


Ingredients

Scale
  • 1/2 cup (113 g) unsalted butter, melted
  • 1/4 cup (50 g) granulated sugar
  • 1 teaspoon vanilla extract
  • 1/4 teaspoon salt
  • 1 cup (125 g) all-purpose flour
  • 1 (14 oz / 396 g) can full-fat sweetened condensed milk
  • 6 tablespoons (90 ml) fresh lemon juice
  • 1 teaspoon lemon zest
  • 1 large egg yolk
  • 1 cup (140 g) fresh or frozen blueberries
  • 2 teaspoons granulated sugar (for blueberry sauce)
  • 1 teaspoon cornstarch
  • 2 teaspoons lemon juice or water (for cornstarch slurry)

Instructions

  1. Prepare the blueberry sauce by combining blueberries and sugar in a saucepan over medium heat. Cook for about 3 minutes, gently mashing the berries as they soften.
  2. Mix the cornstarch with lemon juice or water, then stir it into the blueberry mixture. Cook for 2 more minutes until thickened. Remove from heat and set aside.
  3. Preheat the oven to 350°F (177°C).
  4. In a bowl, mix melted butter, sugar, vanilla extract, and salt. Add flour and stir until a thick dough forms.
  5. Press the dough firmly into a 9-inch tart pan, evenly covering the base and sides.
  6. Bake the crust for about 15 minutes, until the edges are lightly golden. Prick the warm crust with a fork.
  7. Whisk together sweetened condensed milk, lemon juice, lemon zest, and egg yolk until smooth.
  8. Pour the lemon filling into the warm crust and smooth the surface.
  9. Spoon small dollops of blueberry sauce over the filling and gently swirl with a toothpick or knife.
  10. Bake for 17–19 minutes, just until the center no longer jiggles.
  11. Cool completely at room temperature, then refrigerate for at least 2 hours before slicing and serving.

Notes

  • Do not overbake, as the filling should remain creamy.
  • The tart sets further as it chills in the refrigerator.
  • Frozen blueberries can be used without thawing.
  • Leftover blueberry sauce can be served on top or saved for other desserts.

Nutrition

  • Serving Size: 1 slice
  • Calories: 360 kcal
  • Sugar: 32 g
  • Sodium: 180 mg
  • Fat: 18 g
  • Saturated Fat: 11 g
  • Unsaturated Fat: 6 g
  • Trans Fat: 0 g
  • Carbohydrates: 44 g
  • Fiber: 2 g
  • Protein: 6 g
  • Cholesterol: 70 mg