1cup2 sticks cold unsalted butter, cubed — cold is key
1cupgranulated sugar
1cuplight brown sugarpacked
2large eggs
2tablespoonslime juice (half a large lime)
zest of 1 lime
For the dry mix:
3cupsall-purpose flour
2tablespoontapioca flour or cornstarch
1teaspoonbaking powder
½teaspoonbaking soda
1teaspoonsalt
1cupbittersweet chocolate chips60% or higher
1cupsemi-sweet chocolate chips
1cupsweetened shredded coconut
Instructions
Preheat your oven to 375° F (190° C)
Line a baking sheet with parchment paper, a silicone baking mat, or a light spritz of oil.
Cream the cold butter and both sugars.
In a large mixing bowl, beat the cold cubed butter with the granulated sugar and light brown sugar until light and fluffy.
Add the eggs and lime
Mix in the eggs one at a time, then add the lime juice and zest. Beat until everything is well combined and the batter looks smooth.
Combine your dry ingredients.
In a separate bowl, whisk together the flour, tapioca flour, baking powder, baking soda, and salt. Whisking them together first means no mysterious pockets of baking soda.
Bring the dry into the wet — gently.
Gradually add the dry ingredients to the wet, mixing just until incorporated. Don’t overmix.
Fold in the chocolate chips and coconut shreds
Fold them in with a spatula.
Portion your dough into tall, generous balls.
Using ¼ cup per cookie form 12 large dough balls and place them on your prepared baking sheet, 6 spaced apart per half sheet pan. The height matters — don't press them down. They should be tall mounds. Press in some shredded coconut to the top of the mounds.
Bake for 11-13 minutes.
Bake until the edges are golden and the centers are just set. They'll look slightly underdone. The residual heat does the rest.
Cool on the pan, then on a rack.
Let the cookies rest on the baking sheet for about 10 minutes before transferring to a wire rack. The more they sit the better they set up. Patience here is the final ingredient.