01 -
Heat your oven to 350°F. Get 2 baking trays ready by lining them with parchment.
02 -
Stir the flour, baking powder, soda, and salt together in a medium bowl. Make sure it's all blended.
03 -
Using a stand mixer with the paddle, cream the butter with sugar till it's lightened and fluffy. Do this on medium—it'll take about 4 minutes.
04 -
Keep the mixer on low and mix in vanilla, egg, lemon juice, zest, and the coconut. Scrape down the sides as you go.
05 -
Mix the dry stuff into the wet. Scoop dough with 2-tablespoon portions, roll into balls, coat in crunchy sugar, then space them 2 inches apart on the pans.
06 -
Bake for 14 to 18 minutes, just until the edges are golden. Let them cool on the tray for 5 minutes before transferring to a rack.