Mini Lemon Cupcakes with Perfect Silky Buttercream

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Mini lemon cupcakes with the silkiest lemon buttercream.
Mini Lemon Cupcakes with Perfect Silky Buttercream

First off, for those of you who don’t already know, I’m a finalist for a Martha Stewart American Made Award!  Not only is this an honor, but it is also an amazing opportunity.  The winner will be selected based on VOTES and will be honored at the American Made event in New York City AND appear in Martha Stewart Living Magazine.  On top of that, Keep It Sweet Desserts would get $10,000 to help grow the business. It couldn’t get much better than that.

Please help me by voting EVERY DAY from now through September 24th!  I’ve been doing pretty well so far, but can use a little extra push in the contest.  Your support means the world to me.  For those of you who have been voting, tweeting, facebooking and emailing, thank you a million times over!

Please VOTE for Keep It Sweet Desserts!

Now, onto cupcakes.  These lovelies were just one of the desserts that we enjoyed to celebrate my husband’s 29th birthday.  His birthday is today (HAPPY BIRTHDAY MATT!!!!!!), but we had our families over to celebrate on Sunday night.  Dinner was all about the meat:  hot dog appetizers (full-size, not mini); burgers; and two different cuts of steak.  There was also a side of mashed potatoes, tomatoes and mozzarella and a chopped salad.  To my vegetarian friends, please know that we bought high quality meat that came from well-treated animals.

Mini Lemon Cupcakes with Perfect Silky Buttercream

And yes, Matt did eat all of the different items we served.  I, however, had my once-a-year cheeseburger and lots of salad on the side.

Lucky for me, my meat-loving husband also loves dessert.  I like to take credit for his refined sweets palate and discretion over worth-it desserts but he should also get credit for the quality of all of the Keep It Sweet Dessert cookies and bars.  He is an MVP taste-tester.  But I digress.

As for the birthday desserts, it was a menu of all things Matt loves:  Yellow layer cake with chocolate buttercream frosting, warm salted chocolate chip cookies AND warm chocolate chip cookie cheesecake (Thank, MOM!) just out of the oven, and finally these Mini Lemon Cupcakes with Perfect Silky Buttercream.

Mini Lemon Cupcakes with Perfect Silky Buttercream

While I would never request a lemon dessert for my birthday, I’m glad that Matt did!  These cupcakes were the perfect balance of lemon flavor without an intensely sweet or overly sour note to them.  If anything, Matt thought there could have been a little more lemon in the frosting, but I really wanted it to just compliment the cake, not overtake it.

Mini Lemon Cupcakes with Perfect Silky Buttercream
Mini lemon cupcakes with the silkiest lemon buttercream.
Recipe type: Dessert
Makes: 36 mini cupcakes
Lemon Cupcakes
  • 1 cup + 3 tablespoons (5⅛ ounces) all purpose flour
  • 1 teaspoon baking powder
  • ½ teaspoon table salt
  • ¼ cup plain greek yogurt (I used fat free)
  • ¼ cup milk (I used skim)
  • 1 tablespoon fresh lemon juice (about ½ of a lemon)
  • 1 tablespoon lemon zest (about 1 lemon)
  • 1 teaspoon vanilla extract
  • ½ cup (1 stick) unsalted butter softened at room temperature
  • ¾ cup granulated sugar (5⅝ ounces)
  • 2 large eggs at room temperature
Lemon Kissed Swiss Meringue Buttercream
  • ½ cup egg whites (I used 3 extra-large but pasteurized egg whites work fine)
  • 1 cup granulated sugar
  • 1⅛ cups (2¼ sticks) unsalted butter, softened and cut into 1-inch cubes
  • 1 tablespoon lemon zest (about 1 lemon)
  • ½ tablespoon vanilla extract
  • <1/8 teaspoon table salt
Lemon Cupcakes
  1. Pre-heat oven to 350 degrees; fill mini cupcake tins with 36 cupcake wrappers; set aside
  2. In a medium bowl, whisk flour, baking powder and salt; set aside
  3. In a separate bowl, combine yogurt, milk, lemon juice, lemon zest, and vanilla; set aside
  4. In a large bowl with an electric mixer, beat butter and sugar on high speed for several minutes or until light and fluffy; at this point you can’t really overbeat the batter, you want to get as much lightness at this stage as you can; scrape the sides of the bowl with a spatula
  5. Add eggs, one at a time, beating at medium speed for one minute after each; scrape the sides of the bowl with the spatula
  6. Reduce speed to low and slowly add ⅓ of flour mixture and then ½ of wet ingredients; repeat with ⅓ of flour mixture and remaining wet ingredients; add remaining flour mixture and remove from mixer immediately (there should still be lumps in the batter)
  7. Gently fold batter so that you can no longer see any dry ingredients but there are still some small lumps; do not overmix
  8. Evenly distribute batter into cupcake wrappers; I find this easiest with a medium cookie dough scoop or small ladle
  9. Bake cupcakes for 10-12 minutes or until a toothpick comes out clean from a center cupcake; do not overbake
  10. Set cupcakes aside to cool and prepare frosting
  1. Wipe the bowl of an electric mixer, whisk attachment, whisk, spatula and candy thermometer with a paper towel and vinegar to clean (if any grease is on these items your meringue will not work)
  2. Place egg whites and sugar in mixing bowl over pot of simmering water; water should not be high enough to touch mixing bowl
  3. Whisk mixture slowly but constantly until temperature reaches 160 degrees F, about 5-10 minutes
  4. Remove from stove and attach bowl to electric mixer with whisk attachment
  5. Put mixer on low to medium speed and whisk until meringue is shiny and thick and bowl has cooled down to room temperature; if bowl does not cool and meringue has formed, you can put an ice bath under the mixing bowl while it is mixing
  6. Once ready, replace whisk attachment with paddle attachment and add cubes of butter one at a time mixing on low speed until the mixture is light and creamy; if mixture gets lumpy, keep mixing for several minutes; if it gets runny, place bowl in fridge for 10 minutes before continuing to mix
  7. Stop mixer to scrape sides of bowl and continue to beat on low speed for another minute
  8. Add lemon zest, vanilla, and salt and mix on medium speed until the SMB is light and creamy
  9. Frost cupcakes as desired (I prefer piping for swiss meringue buttercream)
Cupcakes adapted from Sweetapolita
Buttercream adapted from Sweetapolita
Cupcakes are best that day or refrigerated overnight; may be frozen up to one month and served at room temperature


Mini Lemon Cupcakes with Perfect Silky Buttercream

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28 Responses to “Mini Lemon Cupcakes with Perfect Silky Buttercream”

  1. Liz @ Tip Top Shape September 12, 2012 at 9:51 am #

    These cupcakes looks fantastic!! Love it!

  2. Tara @ Chip Chip Hooray September 12, 2012 at 9:57 am #

    Happy birthday to Matt! Good luck to you in the Martha Stewart contest–I FB-ed it today, and I’ve been voting. :)

  3. Bianca @ Confessions of a Chocoholic September 12, 2012 at 10:25 am #

    I just voted for you on Martha Stewart! I love your blog and will continue to vote :) The desserts (and meat) for the party all sound fantastic. I would especially like the yellow cake with chocolate buttercream frosting :)

  4. thelittleloaf September 12, 2012 at 12:28 pm #

    HUGE congratulations! I’ve cast my vote…fingers tightly crossed. How amazing would it be if you won? :-)

  5. Jennie @themessybakerblog September 12, 2012 at 3:32 pm #

    Congratulations!!! I’m so stinkin’ happy for you, and you deserve it. These cupcakes look amazing. Happy bday, Matt! I’m going over to vote right now. Fingers crossed!

  6. Madison @ E&C September 12, 2012 at 4:36 pm #

    Happy Birthday to Matt!

  7. Joanne September 13, 2012 at 6:59 am #

    I was going to say, Matt must have been the one who requested these cupcakes because I know you aren’t a serious lemon lover! They are adorable though. Everything you made sounds amazing! You are now the official planner of my next birthday extravaganza.

  8. Christina @ Sweet Pea's Kitchen September 13, 2012 at 10:07 pm #

    Oh wow! Congratulations for being a finalist! So exciting! I just voted for you on Martha Stewart! :) BTW, these cupcakes look amazing!!

  9. Audra@The-Baker-Chick September 14, 2012 at 2:40 pm #

    That is so awesome Lauren- congrats!!! Also- these cupcakes are adorable and that buttercream looks silky and delicious!

  10. Julia {The Roasted Root} September 15, 2012 at 10:01 am #

    Congratulations on being recognized for your amazing acheivements! I voted for ya! Good luck and your mini lemon cupcakes look perfect!

  11. Kathryn September 15, 2012 at 6:53 pm #

    You’re such a star Lauren, I’m going to keep voting every day! Woo!

    Love these little lemon cakes, that buttercream sounds wonderful too.

  12. Valerie September 16, 2012 at 9:26 am #

    You just have to win this award, Lauren! I’m pulling for you!!
    As for the cupcakes, yes…yes…Yes! :D I adore lemons (almost obsessively). These cupcakes look like sheer bliss.

    • Keep It Sweet September 16, 2012 at 9:30 am #

      Thank you! I actually thought of you while making these:-)

  13. Simply Life September 17, 2012 at 7:48 pm #

    CONGRATS on making it this far! what a well-deserved honor! off to vote now! :)

  14. OliePants September 18, 2012 at 11:45 pm #

    Congratulations for getting this far! That’s a great accomplishment! These cupcakes look fantastic.

  15. Jen @ keepitsimplefoods September 21, 2012 at 7:12 pm #

    I love lemony desserts so these have me drooling. Congrats on being a finalist! I’m definitely voting for you!!!!

  16. Monet September 26, 2012 at 10:48 am #

    Congratulations! I will certainly vote for you. These cupcakes look sweet and tasty, by the way! Thank you for sharing with me and making my morning all the more delicious. I hope you have a great end to your week.

  17. Kat October 4, 2012 at 6:08 pm #

    Ooh yum! I think I’m going to make these… :D


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