Ingredients
Method
Preparation
- Preheat your oven to 350°F (175°C). Line a baking sheet with parchment paper.
- In a bowl, mix the flour, cornstarch, baking powder, baking soda, and salt. Set aside.
- In a large bowl, whisk together the granulated sugar and lemon zest until fragrant.
- Add the melted butter to the sugar mixture and mix well.
- Add the egg, egg yolk, and vanilla extract. Mix until everything is combined.
- Gradually add the dry ingredients to the wet ingredients. Mix until just combined.
- Gently fold in the fresh blueberries.
- If using, place the ¼ cup granulated sugar in a shallow dish. Scoop out tablespoon-sized portions of dough and roll them into balls. Roll each ball in the sugar before placing them on the baking sheet, leaving some space between each cookie.
Baking
- Bake for 10-12 minutes, or until the edges are lightly golden.
- Let them cool on the baking sheet for a few minutes before transferring to a wire rack.
Notes
Serve cookies warm or at room temperature. They pair wonderfully with tea or coffee. Consider sprinkling extra lemon zest on top for added flavor. Store in an airtight container at room temperature for up to a week, or freeze for up to three months, layering with parchment paper to prevent sticking. For a richer flavor, add lemon juice to the dough, and for a sweeter option, consider adding white chocolate chips.
