Seams and Sprinkles

A sweet and fashionable life, one post at a time.

St. Paddy's Chocolate Cake Shake

Back in October, we headed to a dear friend's wedding in Arizona. Not only was it a lovely time and a great opportunity to catch up, we also got to head to one of my favorite childhood restaurants...Portillo's! If you have never checked them out, you have to see if there is a location near you or if there is one near your next vacation spot. One of my favorite things on the menu there is the chocolate cake shake. It might sound strange, but trust me it is heavenly!

I thought it would be fun to make an Irish inspired cake shake to celebrate St. Paddy's Day right by infusing in some Guinness beer. So, are you ready for this flavor and unique textural experience? This recipe will be done in a jiffy, so feel free to make it when your favorite lucky charm stops by to have some fun with you for St. Patrick's Day. Grab your blender, a few mugs, and all the yummy fixings to have your pot o' gold at the end of the flavor rainbow!

St. Paddy's Chocolate Cake Shake

Ingredients for the cake:

  • 1/4 cup unbleached all-purpose flour
  • 1/4 cup granulated sugar
  • 1/8 teaspoon sea salt
  • 1/4 cup Guinness stout beer
  • 1/4 cup unsalted butter, melted and slightly cooled
  • 2 large eggs
  • 1 teaspoon vanilla extract
  • 1/4 cup semi-sweet chocolate chips

Ingredients for the shake:

  • 4-5 scoops of chocolate ice cream, add more or less for the desired shake texture
  • 1/2 cup Guinness stout beer
  • Toppings such as whipped cream, sprinkles, chocolate syrup and Lucky Charms marshmallows (my personal favorite)

Photography by: Yadish Ramos Photography


  1. In a bowl, whisk the flour, sugar, cocoa powder and salt together.
  2. In a separate bowl, whisk the beer, butter, eggs, and vanilla until smooth.
  3. Add the wet ingredients to the dry and beat them until they are completely incorporated and no lumps are present.
  4. Stir in the 1/4 cup chocolate chips with a spatula.
  5. Split the batter evenly into two microwavable 8-ounce mugs.
  6. Place the both of the mugs into the microwave and heat on high for about 1 minute and 45 seconds. Due to varying times, check the cakes at about 1 minute, 25 seconds and adjust as you need for your microwave settings. 
  7. Set the mug chocolate cakes aside to cool while you prepare the shake.
  8. Using a blender, combine the ice cream and Guinness beer until smooth and the carbonation has settled a bit.
  9. Add in chunks of the chocolate cake to the shake mix and lightly pulse the shake in the blender to break up the cake into the shake mixture slightly. Set aside.
  10. Swirl chocolate syrup all over the inside of a frosted cup, as desired.
  11. Slowly pour chocolate cake shake mixture into the prepared frosted cup.
  12. Finally, top with whipped cream and other holiday toppings of your choosing! I added more mini chocolate chips, lucky charms marshmallows and colored sprinkles on top.

Note: Recipe originally developed for Blissfully Domestic 
Easy peasy, right? If you are drooling now, hurry up and go make a shake for yourself! I hope you have a wonderful and magical St. Patrick's Day. Be sure to leave your favorite tradition for this holiday in the comments below. 


  1. This looks so yummy! I love all of the colors! And the lucky charm marshmallows!! Definitely my kind of shake!

    1. Hi Gabriella! Thank you so much for taking a peek, I hope you make one for the upcoming green holiday! I hear they have the marshmallows alone for sale at Trader Joe's so I plan to grab some next time I am there!

  2. This looks and sounds delicious! A perfect treat for St. Patrick's Day. I love your inspiration behind the recipe, too. I always love recreating my favorite treats from local restaurants.

    1. Thank you! It was really fun to take a trip down memory lane when creating this recipe for St. Patrick's Day. Cheers!

  3. Although any time of the year calls for whimsical concoctions, there couldn't be any other time more appropriate than modern St. Patrick's Day celebrations for this fun treat. Cheers!

  4. Eli, you are the king of whimsical! I would love to see a magical treat idea you whip up with wine :).