1. Preheat oven to 350°F.
  2. Mix shortening and sugar.
  3. Add flour one tablespoon at a time making sure to mix well with each addition.
  4. Add the lime zest and mix thoroughly.
  5. Roll out the dough.
  6. Cut into 2" diameter circles and shape into patties using your hands.
  7. Place on cookie sheet covered with parchment paper and bake for 20 to 25 minutes.
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