Key Lime Sparkler Cookies

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Key Lime Sparkler Cookies

star rating (9) rate this recipe »
Published prior to 2008

Mouth-puckeringly tart AND satisfyingly sweet, these crunchy, sugar-coated cookies are bound to quickly become a family favorite.

3/4 cup (1 1/2 sticks) unsalted butter
3/4 cup granulated sugar
1/2 teaspoon salt
1 teaspoon baking powder
2 tablespoons Key Lime Juice
1/8 teaspoon lime oil
1/8 teaspoon sour salt (citric acid)* OR 1/2 teaspoon Tart & Sour Flavor
1 large egg 2 1/2 cups King Arthur Unbleached All-Purpose Flour

1/8 teaspoon sour salt (citric acid*)
1 cup glazing sugar or confectioners' sugar
2 tablespoons white edible glitter (optional)

*Sour salt (citric acid) is what gives the cookies their sour bite—if you want less tang, use just a pinch.

In a medium-sized bowl, beat together the butter, sugar, salt, and baking powder till well blended. Beat in the lime juice, lime oil, sour salt (citric acid), and the egg. Blend in the flour thoroughly.

Roll the dough into 1" balls, and place them on lightly greased or parchment-lined baking sheets. Bake the cookies in the top third of a preheated 350°F oven for 14 to 16 minutes, until the cookies are browned on the bottom. Remove them from the oven, and cool on the pan for about 10 minutes before transferring to a rack.

Mix together the sugar coating ingredients in a pan or bag. Gently shake and roll the still slightly warm cookies in the sugar till coated. Allow the cookies to cool completely, then repeat, coating again with the sugar. (If you're freezing the cookies, you may choose to recoat the cookies in sugar once they've been removed from the freezer, before serving.) Yield: 3 dozen cookies.


  • star rating 03/10/2015
  • srusk from Modesto
  • Agree with all super comments below. Recipe is definitely a keeper even if one doesn't have lime oil or sour salt. It still works perfect using all the other listed ingredients. I tossed in some fresh lime zest to make up for no lime oil. Then used KA's non-melting powdered sugar and put two drops of green food gel coloring in and mixed well before rolling the cookies in it. Big hit.
  • star rating 11/29/2012
  • Metra from Hugo, OK
  • Tripled the citric acid. At least. Put a drop of green food color in the dough and some green sugar in with the powdered sugar, citric acid and edible glitter, and shaped them into half moons -- I also made Russian Tea Cakes and we had to be able to tell them apart. They got rave reviews from everybody. This is definitely a keeper recipe.
  • star rating 11/20/2012
  • M Prinke from Elgin, IL
  • Fantastic taste. I made this for the first time and they are pretty and go great with tea!
  • star rating 06/23/2012
  • blaze65 from KAF Community
  • I live in the Southwest where Mexican wedding cakes are very popular. I had a co-worker reach for a cookie commenting "I love these things". After the first bite he gave me a double take since it was not what he was expecting. The first words out of his mouth were "That was amazing". I am going to make them in a lemon, key lime and orange flavors and use color sugar sprinkles to identify them. Great website! This is the only time I wished I lived in the Northeast. Just to be closer to the product center.
  • star rating 04/23/2012
  • knemeyer from KAF Community
  • I make these at Christmas and summertime. They go great for both seasons. Adults seem to like them more. I do the recipe exactly as stated and they come out perfect. I also like to make large batches, freeze and take out as needed. They freeze beautifully.
  • star rating 10/04/2011
  • susanjpemerson from KAF Community
  • Made these with a few limes that had ripened on my tree out back. I also used a little *extra* citric acid for a little more punch. Didn't have the lime oil so I just grated the zest from one of the limes. Perfection!
  • star rating 08/28/2010
  • MrsCheryl from KAF Community
  • I cooked these for my husbands coworkers and they all loved them. I knew my husband would he likes sweet and sour candy and isn't much on sweets, but he can't get enough of these. They were very easy to make and with it being so hot out I knew everyone in the shop would like these. Thank you again King Arthur employees for another great receipe.
  • star rating 12/24/2009
  • violinnm from Houston TX
  • I made a batch of these to share with neighbors as a Christmas gift. They were very well received, with one neighbor wanting the recipe. The recipe is clearly written and easy to follow. The cookies are pretty, smell lovely and taste even better. Thank you for a great recipe.
  • star rating 09/01/2009
  • Ruth from Schwenksville Pa
  • these are the best cookies . I get requests for the recipe all the time. So refreshing and different from the usual sweet stuff.