Cupcake of the Week: Key Lime

Well these cupcakes have been on my “to-do” list for a while now… and they were definitely worth the wait!

Key lime pie is a pretty big deal in Florida. So it only seemed right that there be a cupcake version.

Here’s mine:

Here’s the recipe I used… I changed it up a little, but pretty much followed it all the way through. The frosting recipe is my own.


1 ¾ cups cake flour
½ teaspoon baking powder
½ teaspoon baking soda
½ teaspoon salt
1 stick (1/2 cup) cool unsalted butter, cut into 8 pieces
1 ¼ cups granulated sugar
2 large eggs (room temperature)
3 ½ tablespoons key lime juice
1 tablespoon key lime zest
1 drop green food coloring paste
¾ cup buttermilk (room temperature)
graham cracker crumbs

Preheat oven to 350*F. Line a muffin tin with 12 paper liners.

Put maybe half a teaspoon of graham cracker crumbs at the bottom of each cupcake liner.

Sift the cake flour, baking powder, baking soda, set aside.

Using a stand mixer, beat the butter, sugar and eggs until fluffy. Add the lime juice, zest, and food coloring and beat until mixed. (The mixture will look curdled.)

Add the flour in three additions, alternating with the buttermilk, beginning and ending with the flour, scraping down the bowl as necessary. Mix on low until just combined. Fill each cupcake liner 2/3 full.

Bake 20-25 minutes. Cool completely and frost with cream cheese icing.

Makes 12-14 cupcakes. (Mine made about 68 mini cupcakes)

Cream Cheese Frosting:

1 stick butter
1 8oz pkg 1/3 low fat cream cheese
1 tsp clear vanilla extract
1 tablespoon key lime zest
4 cups powdered sugar

Mix butter, cream cheese and vanilla until blended and creamy. Add lime zest. Mix well. Add sugar one cup at a time until mixed. Whip on high, one minute.

All I have to say about this recipe is that, key limes are tiny… and getting that many tablespoons of zest, and that many tablespoons of juice… took a lot of those little things. But! They’re super yummy, so it was totally worth it. Here’s a picture of the yumminess.  🙂

4 comments on “Cupcake of the Week: Key Lime

  1. Danny
    June 15, 2012 at 2:18 am #

    These are beautiful and they look so light and refreshing!

    • jenidleman
      June 15, 2012 at 2:20 am #

      Thank you! They are really refreshing, especially after they’re refrigerated. I definitely plan on making these again! 🙂

      • Danny
        June 15, 2012 at 2:27 am #

        Would love some for this weekend here in the Midwest – it’s going to be a scorcher here 🙂

  2. jenidleman
    June 15, 2012 at 1:48 pm #

    Well, make some cupcakes and stay cool! We’ve got a few months of scorchers coming up, so I understand. 🙂 Love your blog!

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