Mini Shamrock Whoopie Pies

Name: Mini Shamrock Whoopie Pies
Prep time: 20 min
Cook time: 10 min
Total time: 30 min
Yield: 12 mini pies
Ingredients: 1 cup all-purpose flour; 1/2 cup unsweetened cocoa powder; 1/2 teaspoon baking soda; 1/4 teaspoon salt; 1/2 cup unsalted butter, softened; 1 cup granulated sugar; 1 large egg; 1 teaspoon vanilla extract; 1/4 teaspoon peppermint extract; 1/2 cup milk; 1/2 cup unsalted butter, softened; 2 cups powdered sugar; 2 tablespoons heavy cream; 1/2 teaspoon peppermint extract; Green food coloring (optional)

I love making Mini Shamrock Whoopie Pies, especially around St. Patrick's Day! These delightful treats bring together soft, cake-like cookies filled with creamy frosting. The vibrant green filling is not just festive; it's a subtle nod to the flavors of mint and chocolate that work so beautifully together. The best part? They’re surprisingly easy to make, allowing me to whip up a batch in no time for gatherings or just a sweet indulgence at home. Trust me, these pies will charm everyone!

Created by

Emmas

Last updated on 2026-02-18T15:46:19.960Z

When I first attempted these Mini Shamrock Whoopie Pies, I was surprised at how quickly they came together. The key is to not overmix the batter; this keeps the cookies soft and tender. I also learned that chilling the filling before piping it helps achieve the perfect texture—luxuriously creamy without being too runny!

Each bite offers a delightful mix of mint and chocolate, but there's room to get creative. One time, I added a hint of almond extract to the filling, which gave it an unexpected twist that my friends couldn't get enough of. These pies are sure to be a crowd-pleaser!

        Why You'll Love This Recipe
        Soft and cake-like texture that melts in your mouth
Festive and fun for any St. Patrick's Day celebration
Delicious mint and chocolate flavor combination

      

Elevate Your Filling

The filling for these Mini Shamrock Whoopie Pies is not just any frosting; it’s crafted to achieve the perfect balance of sweetness and minty freshness. The key ingredient is the heavy cream, which adds a rich texture, making the filling light and fluffy. When mixing, be sure to beat the butter until it's creamy before gradually incorporating the powdered sugar to help create a smooth consistency that pipes beautifully. If the mixture is too thick, a little extra cream can help achieve that perfect spreadable texture.

Coloring the filling with green food coloring is optional, but it adds to the festive nature of these treats. If you’re seeking a natural approach, consider using spirulina or matcha powder for green hues. Just remember to adjust the amount gradually and taste as you go, ensuring the mint flavor is not overshadowed by too much coloring. I recommend starting with just a small pinch of powder.

Perfect Baking Techniques

When baking your cookies, precision in timing and temperature is crucial. As they bake, watch for slight puffing and the moment they lose their glossy finish, which indicates they are set yet still soft. Don’t be tempted to overbake them; they should be removed from the oven while they still retain some of their soft texture, allowing them to firm up once they cool on the rack. This is essential for achieving that melt-in-your-mouth experience.

If you find that the cookies are spreading too much, it may be due to the butter being too warm or not enough flour in your mixture. Ensure that your butter is softened, not melted, and consider chilling your dough for about 15–30 minutes before baking. This quick chill allows the cookies to hold their shape better, resulting in those perfectly rounded whoopie pies.

Ingredients

Gather the following ingredients to make these Mini Shamrock Whoopie Pies:

For the Cookies

1 cup all-purpose flour
1/2 cup unsweetened cocoa powder
1/2 teaspoon baking soda
1/4 teaspoon salt
1/2 cup unsalted butter, softened
1 cup granulated sugar
1 large egg
1 teaspoon vanilla extract
1/4 teaspoon peppermint extract
1/2 cup milk

For the Filling

1/2 cup unsalted butter, softened
2 cups powdered sugar
2 tablespoons heavy cream
1/2 teaspoon peppermint extract
Green food coloring (optional)

Once you have all your ingredients ready, you're set to start baking!

Instructions

Follow these simple steps to create delicious Mini Shamrock Whoopie Pies:

Prepare the Cookies

Preheat your oven to 350°F (175°C). In a bowl, whisk together the flour, cocoa powder, baking soda, and salt. In a separate bowl, cream the butter and sugar until light and fluffy. Add in the egg, vanilla, and peppermint extract, mixing well. Gradually add the dry ingredients and milk, stirring until combined. Drop spoonfuls of batter onto a lined baking sheet.

Bake

Bake for 10 minutes, or until the cookies are set but still soft. Remove from the oven and let cool on a wire rack.

Make the Filling

In a mixer, beat the butter until smooth. Gradually add the powdered sugar, then heavy cream and peppermint extract. Mix until fluffy; add food coloring if desired for a festive look.

Assemble

Once the cookies are completely cool, turn half of them upside down. Pipe or spread a generous amount of filling onto the flat side, then top with another cookie, flat side down to make a sandwich.

Enjoy your delicious Mini Shamrock Whoopie Pies!

Pro Tips

For an extra touch, sprinkle crushed mint candies on top of the filling before placing the cookie on top. This adds a nice crunch and additional mint flavor.

Serving Suggestions

Mini Shamrock Whoopie Pies can be an adorable addition to a St. Patrick's Day dessert table or a charming treat for any gathering. For an extra touch, dust the serving platter with powdered sugar and garnish each whoopie pie with a sprig of fresh mint. This not only enhances their appearance but also adds an aromatic note when guests take a bite.

If you want to explore different flavors, consider replacing the peppermint extract with orange or almond extract to create a unique filling. These variations complement the chocolate cookies nicely, giving you a personalized twist that still feels festive.

Storage and Make-Ahead Tips

These whoopie pies can be made in advance and stored for up to three days at room temperature. Place them in an airtight container with parchment paper between the layers to prevent sticking. If you plan to make them even further in advance, consider freezing the baked cookies without the filling for up to a month. Just be sure to let them cool completely before wrapping them tightly in plastic wrap and placing them in a freezer-safe bag.

When you're ready to enjoy your frozen cookies, simply thaw them overnight in the fridge. After thawing, fill them with the freshly prepared frosting. This way, the pies will taste fresh and scrumptious, allowing you to enjoy your festive treats at a moment's notice!

Questions About Recipes

→ Can I use other flavors instead of mint?

Absolutely! You can experiment with different extracts like vanilla or almond for a unique taste.

→ How do I store whoopie pies?

Store them in an airtight container at room temperature for up to 3 days, or refrigerate to keep fresh longer.

→ Can I freeze these whoopie pies?

Yes! Freeze them individually then store in a freezer-safe container for up to a month.

→ What's the best way to serve these?

Serve them chilled for a refreshing treat, or at room temperature for a softer bite.