Mint Chocolate Chip Whoopie Pies

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These Mint Chocolate Chip Whoopie Pies are a classic! They feature moist, cakey chocolate cookies and a rich mint chocolate chip buttercream filling! They make a perfect dessert for St. Patrick’s Day or any day of the year you feel like getting lucky.

Mint Chocolate Chip Whoopie Pies | SugarHero.com

Happy St. Patrick’s Day! Are you wearing green? Gleefully pinching friends and strangers alike? Stuffed full of cabbage? Drunk before noon? Reminiscing fondly about the time St. Patrick drove the snakes out of Ireland? What a weird, wonderful holiday this is.

In keeping with this solemn celebration of Ireland’s patron saint, I have made you a green dessert. As one does.  These Mint Chocolate Chip Whoopie Pies fulfill all your green eatin’ needs, but the also work well throughout the whole year—any day can be a mint chocolate chip day!

Mint Chocolate Chip Whoopie Pies | SugarHero.com

These whoopie pies start with two moist, cakey sour cream chocolate cookies. They’re filled with a minty Swiss meringue buttercream that’s so creamy and rich, it tastes like ice cream. I added some very finely chopped semi-sweet chocolate, so that there are flecks of chocolate in every bite. And of course, no St. Patrick’s Day treat would be complete without a glimmer of gold, so I surrounded some of the cookies with a ring of green and gold Sixlets. The Sixlets really make the cookies pop, and I love how they look like a jeweled bracelet around the edge of the cookies.

Mint Chocolate Chip Whoopie Pies | SugarHero.com

These cookies made me feel better about being a bit of a St. Patrick’s Day scrooge this year. Asher is too young to appreciate the finer things in life, like green milk and green eggs, so we skipped a lot of my favorite childhood traditions. Also, I’m already planning on having Mexican food for lunch, and I’m pretty sure salsa is not one of the officially condoned St. Patrick’s Day food groups. But I think as long as I get my green food fix with mint chip buttercream, life is good.

Mint Chocolate Chip Whoopie Pies | SugarHero.com

If you love this, you won’t want to miss my Shamrock Shake Shots, Pot of Gold St. Patrick’s Day Cupcakes and Gold-Topped Rainbow Cake. Have a safe and fun holiday!

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Gourmet Homemade Oreos
You’ve never had Oreos like these before! These gourmet homemade Oreos are filled with fun flavors of buttercream, like lemon, orange, raspberry, vanilla bean, and mint chocolate chip!
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Close up of Mint Chocolate Chip Whoopie Pies on a wooden surface.

Mint Chocolate Chip Whoopie Pies

5 from 1 vote
These Mint Chocolate Chip Whoopie Pies are a classic! They feature moist, cakey chocolate cookies and a rich mint chocolate chip buttercream filling! They make a perfect dessert for St. Patrick's Day or any day of the year you feel like getting lucky.
Prep Time 30 mins
Cook Time 14 mins
Total Time 44 mins
Yield 18 cookies
Calories 364 kcal

Ingredients
 

For the Chocolate Cookies:

For the Mint Chip Frosting:

For Decoration:

CUSTOMIZE: 18 cookies

Instructions
 

To Make the Cookies:

  • Preheat the oven to 350 F, and line three baking sheets with parchment paper. In a small bowl, sift together the flour, cocoa powder, baking soda, and salt, and set aside.
  • Combine the butter and both sugars in the large bowl of a stand mixer fitted with a paddle attachment. Mix on medium speed for 1-2 minutes until the sugars are mixed and well-moistened, with the texture of wet sand. Add the eggs one at a time, then add the vanilla. Add the melted, cooled chocolate and mix on low speed until combined. Scrape down the bottom and sides of the bowl.
  • With the mixer running on low speed, add a third of the dry ingredients. When those are mixed in, add half of the sour cream, then continue to alternate adding the dry ingredients and sour cream, until all of the ingredients are incorporated. Scrape down the bottom and sides of the bowl once more.
  • Scoop 1 1/2-inch balls of batter onto the prepared baking sheets, leaving a few inches between each cookie, as they will spread. Bake for 12-14 minutes, until the cookies are puffed and they spring back lightly when pressed with a finger. Cool on the baking sheets before filling.

To Make the Mint Chip Frosting:

  • Combine the egg whites and the granulated sugar in the bowl of a large stand mixer, and whisk them together. Choose a small saucepan that lets you fit the base of the stand mixer snugly into the top of the saucepan—this is your makeshift hot water bath. (Alternately, you can use a different bowl or an actual bain marie and then transfer the mixture to a mixing bowl once it’s heated.) Add an inch of water to the bottom of the saucepan, and bring the water to a simmer.
  • Place the mixing bowl on top of the saucepan, making sure that the bottom isn’t in contact with the water, and heat the egg white mixture. Whisk frequently so that the egg whites don’t cook. Continue to heat the whites until they are hot to the touch, and when you rub a bit between your fingers, you don’t feel any grittiness from the sugar. Once the whites are hot, transfer the mixing bowl to your mixer and fit it with a whisk attachment.
  • Beat the whites on medium-high speed until they are no longer warm to the touch—feel the outside of the bowl, and make sure that it is around room temperature. Depending on your mixer and the temperature of your environment, this may take 10-15 minutes, or more. Reduce the speed to medium-low and add the softened but cool butter in small chunks, a tablespoon at a time, making sure to wait in between additions. It may separate or look a little gloopy at this point—fear not. Once all of the butter is added, increase the speed again and whip until it comes together and is light and fluffy. If, after 5 minutes, it hasn’t come together, refrigerate the mixing bowl for 5-7 minutes, to cool the mixture down, and whip it again.
  • Add the salt, mint extract, and a few drops of yellow and green food coloring, mixing until you have a nice minty green color. Finally, add the finely chopped chocolate and stir it in with a spatula. The buttercream can be made in advance and kept at room temperature if you’re going to use it the same day, or refrigerated. If it has been chilled, let it sit at room temperature until it softens, then re-whip it to get the fluffy texture back before you use it.
  • To assemble the whoopie pies, fit a pastry bag with a large star attachment. Pipe a swirl of frosting on half of the cookies, leaving a small margin at the edges. Top the cookies with a second cookie, pressing down slightly so the frosting extends to the edge. If desired, press sixlets into the frosting around the edge.

Recipe Notes

The chocolate cookie recipe adapted from Dorie Greenspan’s Sour Cream Chocolate Cake Cookies in her wonderful book Baking: From My Home to Yours

MEASURING TIPS

Our recipes are developed using weight measurements, and we highly recommend using a kitchen scale for baking whenever possible. However, if you prefer to use cups, volume measurements are provided as well. PLEASE NOTE: the adage “8 oz = 1 cup” is NOT true when speaking about weight, so don’t be concerned if the measurements don’t fit this formula.

Click here to learn more about baking measurements and conversion.

Nutrition

Calories: 364 kcal | Carbohydrates: 47 g | Protein: 4 g | Fat: 19 g | Saturated Fat: 11 g | Cholesterol: 58 mg | Sodium: 297 mg | Potassium: 122 mg | Fiber: 1 g | Sugar: 33 g | Vitamin A: 500 IU | Vitamin C: 0.1 mg | Calcium: 40 mg | Iron: 1.7 mg
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Four photo collage with rainbow and green desserts for St. Patrick's Day, with text overlay.

ST. PATRICK’S DAY DESSERTS 🍀

We’ve rounded up 23 of our FAVORITE rainbow dessert recipes & ideas that are sure to make you smile — click here to get all the recipes!

What You'll Need:
Editor's Note

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