Key Lime Crackles

Directions

1. 1
   Whisk the flour, baking powder and salt in a medium bowl. Beat the butter and granulated sugar in a large bowl with a mixer on medium speed until light and fluffy, about 3 minutes.
2. 2
   Add the eggs, one at a time, beating well after each addition. Beat in the lime zest and juice, then beat in the food coloring. Reduce the mixer speed to low; gradually add the flour mixture, beating until just combined. Cover and refrigerate until firm, about 45 minutes.
3. 3
   Position racks in the upper and lower thirds of the oven; preheat to 350 degrees F. Line 2 baking sheets with parchment paper.
4. 4
   Combine the confectioners' sugar and sanding sugar in a small bowl.
5. 5
   Roll tablespoonfuls of dough into balls and toss in the sugar mixture to coat completely. Arrange the cookies 2 inches apart on the prepared baking sheets.
6. 6
   Bake, switching the pans halfway through, until the cookies are puffed and cracked on top and golden around the edges, 18 to 20 minutes.
7. 7
   Let cool 5 minutes on the baking sheets, then transfer to racks to cool completely.
8. 8
   Photograph by Ryan Dausch