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Soft Lemon Blueberry Cookies

Bright, tender cookies with a sweet blueberry buttercream, perfect for desserts or healthy swaps.

Ingredients

Scale
  • 1 cup (226g) unsalted butter, softened
  • 1 1/4 cups (250g) granulated sugar
  • 2 Tbsp (12g) lemon zest (about 2 lemons)
  • 1 large egg (50g, without shell)
  • 1 large egg yolk (18g)
  • 3 Tbsp (45g) fresh lemon juice
  • 3 cups (362g) all-purpose flour
  • 2 Tbsp (16g) cornstarch
  • 3/4 tsp (3.6g) baking powder
  • 1/2 tsp (2.4g) baking soda
  • 1/2 tsp (3g) salt
  • 4 cups (480g) powdered sugar
  • 35 Tbsp (15–30g) whole milk, as needed
  • 1 tsp (5g) vanilla extract
  • 1/4 cup (80g) blueberry jam

Instructions

  1. Prepare the Cookie Dough: In a large bowl, cream butter, sugar, and lemon zest until light and fluffy, about 2-3 minutes. Beat in the egg, egg yolk, and lemon juice until smooth and well combined.
  2. Combine Dry Ingredients: In another bowl, whisk flour, cornstarch, baking powder, baking soda, and salt. Gradually add the dry ingredients to the wet mixture until a soft dough forms.
  3. Chill the Dough: Cover and chill dough for at least 30 minutes.
  4. Preheat and Prepare: Preheat oven to 350°F (175°C) and line baking sheets with parchment paper.
  5. Scoop and Shape: Scoop 2-tablespoon portions of dough, roll into balls, and flatten slightly. Place 2 inches apart on the baking sheets.
  6. Bake: Bake for 10-12 minutes, or until the edges are just beginning to turn golden.
  7. Cool Completely: Allow cookies to cool on the baking sheet for 5 minutes before transferring to a wire rack.
  8. Make the Frosting: Beat butter until smooth. Gradually add powdered sugar, then mix in vanilla and milk. Add blueberry jam and beat until creamy and fluffy.
  9. Frost and Decorate: Spread or pipe blueberry buttercream onto cooled cookies.

Notes

Store cooled cookies in an airtight container at room temperature for up to 3 days. For longer storage, freeze un-frosted cookie dough balls.

Nutrition

Keywords: cookies, lemon, blueberry, dessert, sweet treat, baking