1. Prepare the cookie dough:
- Preheat your oven to 180°C (350°F). Line baking sheets with parchment paper.
- In a medium bowl, whisk together the flour, baking powder, baking soda, and salt. Set aside.
- In a large bowl, cream the butter and sugar together until light and fluffy, about 2 minutes.
- Beat in the egg, ricotta cheese, lemon juice, lemon zest, and vanilla extract until smooth.
- Gradually add the dry ingredients to the wet ingredients, mixing just until combined. Do not overmix.
2. Bake the cookies:
- Drop rounded tablespoons of dough onto the prepared baking sheets, spacing them about 2 inches apart.
- Bake for 12–15 minutes, or until the edges are set and the bottoms are lightly golden.
- Allow the cookies to cool on the baking sheet for 5 minutes before transferring them to a wire rack to cool completely.
3. Prepare the glaze:
- In a small bowl, whisk together the powdered sugar and lemon juice until smooth.
- Spoon or drizzle the glaze over the cooled cookies. If desired, sprinkle with additional lemon zest for extra flavor and decoration.
4. Serve and enjoy:
- Let the glaze set for about 15 minutes before serving.