Preheat your oven to 350°F (175°C). Line your baking sheets with parchment paper to prevent sticking.

In a large bowl, beat the softened butter and granulated sugar together until light and fluffy, about 3-4 minutes.

Combine the large egg, lemon juice, and lemon zest into the butter mixture. Mix well until fully incorporated.

In another bowl, whisk together the all-purpose flour, baking soda, salt, and baking powder.

Gradually add the dry mixture to the wet ingredients, mixing just until combined. Do not overmix.

Using a cookie scoop or tablespoon, drop the dough onto the prepared baking sheets, leaving enough space between each cookie.

Bake in the preheated oven for 10-12 minutes, or until the edges are slightly golden but the centers still look soft.

Allow to cool on the baking sheet for a few minutes before transferring them to a wire rack. Once cooled, dust with powdered sugar.

Serve these delectable cookies with a warm beverage or enjoy them as a sweet treat on their own!