Ingredients

  • 3/4 cup unsalted butter, softened
  • 1 cup powdered sugar
  • 2 tablespoons key lime juice
  • 2 tablespoons lime zest
  • 1 tablespoon vanilla
  • 1 3/4 cups flour
  • 2 tablespoons cornstarch
  • 1/4 teaspoon salt

Method

  • Preheat oven to 350°F.
  • Line baking sheets with parchment.
  • Cream butter and 1/3 cup sugar until fluffy.
  • Add the lime juice, zest and vanilla and beat until fluffy.
  • In another bowl, combine together flour, cornstarch and salt.
  • Add to butter mixture and beat until combined.
  • Roll into a log and chill for 1 hour.
  • Slice logs into 1/8-inch rounds.
  • Place rounds on sheets and bake until golden, 11-15 minutes.
  • While still warm, place cookies in bag with the rest of the powdered sugar and toss gently to coat.
  • They are tender and may break apart.