Blueberry Crinkle Cookies

Defrost Blueberries (1-2 minutes): In a microwave-safe bowl, gently defrost the frozen blueberries until they are soft but still intact. Allow them to cool to room temperature along with their juices. (3-5 minutes)

Whisk Dry Ingredients: In a separate bowl, whisk together the flour, baking powder, and salt until well combined. This ensures even distribution of the leavening agent.

Combine Wet and Dry Ingredients: In a large bowl, combine the cooled blueberries (with their juice), granulated sugar, and vegetable oil. Whisk until thoroughly combined. Incorporate the egg whites, lemon zest, and vanilla extract. Gradually add the dry ingredients in two batches, mixing gently after each addition until just combined. Be careful not to overmix.

Chill the Dough (at least 2 hours): Cover the bowl and refrigerate the dough for a minimum of 2 hours. This chilling period is crucial for the cookies to develop their signature crinkled texture and prevents them from spreading too thin during baking.

Preheat Oven and Prepare Baking Sheets: Preheat the oven to 400°F (200°C). Line two baking sheets with parchment paper to prevent sticking.

Prepare Sugar Coatings: Place the granulated sugar and powdered sugar in separate small bowls for coating the cookies.

Shape and Coat Cookies: Remove the chilled dough from the refrigerator. Scoop approximately 1 1/2 tablespoons of dough and gently shape it into a ball. First, coat the ball in granulated sugar, then generously roll it in powdered sugar until completely covered. Place the coated cookie onto a prepared baking sheet, spacing them about 1 1/2 inches apart.

Bake the Cookies (8-10 minutes): Bake in the preheated oven until the cookies are just set, approximately 8 to 10 minutes. Rotate the baking sheets halfway through to ensure even baking. The cookies should have crinkled tops and slightly soft centers.

Cool and Enjoy: Allow the cookies to cool on the baking sheet for a few minutes before transferring them to a wire rack to cool completely. Enjoy the delightful combination of blueberry and lemon flavors in these beautiful crinkle cookies.