1/2 cup butter
1 cup white sugar
1 egg yolk
1 1/2 cups all-purpose flour
1 teaspoon baking powder
1/2 teaspoon salt
1/4 cup Key lime juice
1/2 cup confectioners' sugar for decoration
Preheat oven to 350 degrees F. Grease cookie sheets.
In a large bowl, cream butter, sugar, egg, and egg yolk until smooth. Stir in lime juice and lime zest. Combine the flour, baking powder, and salt; blend into the creamed mixture. Chill dough for 1/2 hour. The dough is sticky. I use a cookie scoop to get nice size balls or just plop on sheet.
Bake 10-12 minutes in the preheated oven or until set. Let set on sheet for 5 minutes then remove to cool on wire racks. Sift confectioners' sugar over cookies while still warm.