Cookies, Living in Sugar

Chocolate Guinness Whoopie Pies

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Hello! Happy Wednesday! St Patricks Day is right around the corner (next Tuesday!) So I’m gearing up to bring you all of the irish inspired recipes over the next couple of days! So first up — these Chocolate Guinness Whoopie Pies.

Chocolate Guinness Whoopie pies side by side with cocoa powder

Now I’ve made these before — you can check out the original post here — but I thought they deserved a bit of an upgrade for St Patties so I subbed the milk in the original recipe for Guinness! The beer brings a dark, slightly bitter edge, to the whoopie pie cookie rounds which is nicely balanced by the super sweet marshmallow buttercream inside. So good!

Chocolate Guinness Whoopie pies  side by side on a rack

They are also ridiculously easy to make and take no more time than a normal cookie recipe (about 20-30 minutes). They require no chill time and are easy to whip up the night before your event or taking them to work. I love super easy weeknight baking!

If you dont have Guinness, feel free to use milk instead. They will still taste super chocolaty and be soft they just wont have a bitter edge. Which if you don’t like that anyway, you can make these while looking at a can of guinness. 🙂

Chocolate Guinness Whoopie pies stacked on a marble background

The marshmallow buttercream frosting is also a staple in these chocolate guinness whoopie pies. Its a standard american buttercream with the edition of marshmallow fluff. Don’t have marshmallow fluff? No problem, a regular vanilla buttercream will work just fine. If you want you can up the vanilla a bit so it is a bit more intense, but you want something that is sweet to go in the middle of the dark, slightly bitter cookies. even if you use milk instead of Guinness.

I hope you enjoy the recipe — get your irish on and grab a Guinness, its going to be fun! See you next time!



Chocolate Guinness Whoopie Pies

Get your Irish on with these dark chocolate Guinness whoopie pies filled with a delicious marshmallow buttercream!
Course Dessert
Cuisine American
Keyword Chocolate, Guinness, Whoopie Pie
Prep Time 15 minutes
Cook Time 10 minutes
Servings 20 Whoopie Pies
Author Danielle @livinginsugar


For the Cookies:

  • 2 Cups all-purpose flour
  • 1/2 Cup Cocoa Powder
  • 1/2 Cup Granulated sugar
  • 1/2 Cup Brown sugar
  • 1/2 Cup 1 Stick Unsalted Butter
  • 1 tsp Baking Soda
  • 1 tsp Baking Powder
  • 1/2 Salt
  • 1 tsp Vanilla
  • 1 Egg
  • 1 Cup Guinness Stout Beer

For the Filling:

  • 1/2 Cup I Stick butter
  • 1/2 Cup Marshmallow Fluff
  • 3 Cups Powdered Sugar
  • 1 tsp vanilla
  • 1 tsp almond extract
  • 1/2 tsp salt
  • 1 tbsp milk


  1. Preheat your oven to 350°F and line sheet pans with parchment paper.
  2. In the bowl of a stand mixer, cream butter until light & fluffy. Add both sugars & mix until pale yellow.
  3. Add the egg followed by vanilla & mix to combine.
  4. In a separate bowl combine dry ingredients & whisk or sift to combine.
  5. add 1/3 of the dry goods to the mixer, followed by a 1/2 cup of the Guinness. Alternate until all ingredients are combined.
  6. Using a 1 inch cookie scoop, scoop batter on to parchment lined cookie sheets 2 inches apart. Batter will be fairly loose and sticky. Don’t worry if cookies spread slightly on the pan — totally normal!
  7. Bake for 10-12 minutes until cookies are set. They will spread out on the pan. Cool on the pan for 5 minutes and remove to a cooling rack. While cookies are cooling, mix up the filling.
  8. For the filling, cream butter and marshmallow fluff together in your stand mixer
  9. Add vanilla extract & salt followed by powdered sugar. Add the sugar slowly to avoid a kitchen covered in sugar! add the milk as needed — you may need more or less depending on your mix. Beat until firm peaks form
  10. Fill a piping bag with your favorite tip and pipe frosting on the flat side of one cookie. Sandwich with another and ta-da. All done.
  11. Store in an airtight container in the refrigerator for up to 3 days. Bring to room temp before serving.

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