01 -
Heat your oven up to 350°F (175°C). Throw a sheet of parchment paper onto a baking tray so they won’t be sticking later, plus it makes for easy clean-up.
02 -
Get a medium-sized bowl. Shake together that flour, baking soda, baking powder, and salt with a whisk. Toss it aside for now.
03 -
Take a big mixing bowl and beat softened butter with sugar until it's fluffy and looks pale. An electric mixer works wonders here and should take you about 3-4 minutes. Don't skip this—it’s what makes those cookies soft!
04 -
Toss the egg and vanilla into your sugary-buttery mix, then beat them together until everything is smooth, shiny, and evenly mixed.
05 -
Slowly fold the dry ingredients into the wet mixture. Go easy on the mixing—just stop once all the white specs of flour disappear. Stirring too much might make the cookies dense.
06 -
With a spatula, carefully mix in those blueberries and the lemon zest. If you’re adding food coloring for a fun purple pop, now’s the time. Keep stirring till everything is well dispersed!
07 -
Scoop out the dough into 1-inch-sized balls and pop them onto the baking sheet you prepared earlier. Squash them down a little with your hand and sprinkle coarse sugar on the tops for that extra crunch.
08 -
Put the cookies in your preheated oven and bake for about 12-15 minutes. Once the edges are a faint golden color, they're done. No need to overcook—the middles should still look just a little soft.
09 -
Let the cookies chill on the tray for around 5 minutes before setting them on a cooling rack to finish cooling completely. Enjoy them once they’re ready with tea or milk, or just solo—they’re that good.