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six key lime cookies on a plate and one key lime cookie on a smaller plate in front of larger plate of cookies
5 from 3 votes

Easy Lime Cookies

This Key Lime Cookie Recipe is so chewy and delicious it will make your mouth water with every bite.
Prep Time10 mins
Cook Time8 mins
Icing and Decorating (Optional)20 mins
Total Time38 mins
Servings: 20 cookies
Author: Sydney Love


  • 1 box key lime cake mix 15.25 oz
  • 2 eggs
  • cup melted butter

Icing (optional)

  • pound confectioners sugar sifted
  • 1 egg white
  • 1 teaspoon lime juice fresh or bottled
  • green food coloring I use paste colors


  • Preheat oven to 350F. Line a cookie sheet with parchment paper and set aside.
  • Using an electric mixer, mix the box of cake mix and the eggs. The texture should be like wet sand.
  • Add the melted butter to the egg and cake mix mixture. Combine until smooth. The cookie dough will be very thick and slightly sticky.
  • Let the cookie dough mixture set for 3-5 minutes because that will make it easier to scoop and roll. Scoop cookie dough and roll it in a ball then put it on the prepared cookie sheet.
  • Bake for 8-10 minutes. They will be soft but they will firm up.

Icing and How to Decorate (optional)

  • Add all Icing ingredients except food coloring to a medium bowl and mix with an electric mixer. Mix for 5-8 minutes until the peaks are stiff. Before this, it might be a bit like a glaze.
  • Add about two thirds of icing into a bowl. Add the green food coloring until you think it is a good green color (add a little at a time).
  • Put the white and green icing into two piping bags. if you don’t have a piping bag, use a zip top bag and cut a small hole in the corner (which is what I used).
  • Flip over the cookies (icing the bottom). Pipe icing to cover them with the green icing and shake the cookie until the icing is flat. Work in groups of 3 at a time.
  • Add one dot of white icing in the middle and a circle around the edge of the cookie.
  • On the outside circle, take a toothpick and run the toothpick into the white dot in the middle. This will resemble a cut lime.
  • Allow cookies to set for 1-2 hours to harden and firm up. You can also serve them soft if you prefer.