01 -
Preheat at 350°F. Line your baking tray with parchment paper to prevent sticking.
02 -
Grab a bowl, toss in your flour, soda, baking powder, and salt, and whisk it all up. Put it aside for now.
03 -
Use your mixer to whip sugar and softened butter together. Beat for 3-4 minutes till it's super airy and pale.
04 -
Throw in the vanilla and egg, and mix till it’s smooth and even. No lumps allowed.
05 -
Add the flour mixture bit by bit to your butter combo. Stir until it’s just mixed, but don’t keep at it forever—overmixing can ruin your cookies!
06 -
Carefully stir in your lemon zest and blueberries. If you're opting for purple, this is when to add that food coloring and mix until the shade is even.
07 -
Scoop out 1-inch balls of dough, space them out on your sheet, and gently press them down a bit. Sprinkle some coarse sugar on top to make them pop.
08 -
Slide your tray into the oven and bake for around 12-15 minutes. The edges should get a golden touch, and the centers will seem slightly soft—that's a good thing!
09 -
Leave the hot cookies on the tray for 5 minutes. Then transfer them to a cooling rack. Dig in once they’ve fully cooled.