Preheat your oven to 350°F (175°C) and line a baking sheet with parchment paper.
In a mixing bowl, whisk together the flour, powdered sugar, baking powder, baking soda, and salt until well combined.
In another bowl, use an electric mixer to cream the softened butter and granulated sugar together until light and fluffy.
Add the egg, vanilla extract, lemon zest, strawberry puree, and lemon juice to the butter mixture. Mix until everything is well incorporated.
Gradually add the dry ingredients to the wet ingredients, mixing until just combined. Do not overmix.
Using a cookie scoop or your hands, drop tablespoon-sized portions of dough onto the prepared baking sheet, leaving space between each cookie as they will spread.
Bake in the preheated oven for 8-10 minutes, or until the edges are lightly golden. The centers may look slightly underdone but will firm up as they cool.
Remove from the oven and let the cookies cool on the baking sheet for 5 minutes before transferring them to a cooling rack to cool completely.