Cream butter and sugar until light and fluffy.
Beat in egg until fully incorporated.
Mix in ricotta cheese until smooth.
Add lemon juice, lemon zest, and vanilla extract.
In a separate bowl, whisk flour, baking powder, baking soda, and salt.
Gradually mix dry ingredients into wet ingredients just until combined.
Cover dough and refrigerate for 30–45 minutes.
Preheat oven to 350°F (175°C) and line baking sheets with parchment paper.
Scoop dough by tablespoonfuls and place 2 inches apart.
Bake for 12–14 minutes until cookies are set but not browned.
Cool on baking sheet for 5 minutes, then transfer to a wire rack.
Whisk powdered sugar, lemon juice, and zest to make glaze.
Spoon glaze over completely cooled cookies and let set.