Slow Cooker Corned Beef and Cabbage Sliders with Guinness Mustard are a fun and festive appetizer or meal, perfect for St. Patrick’s Day!
St. Louis knows how to do Saint Patrick’s Day. There are two parades every year, a big celebration downtown, and then a family clan parade that’s held in the traditionally Irish part of town, Dogtown. It is SO much fun, I wish you could all come! The parade is filled with families, the streets are lined with people having a great time, and lots and lots of Corned Beef and Cabbage is washed down with green beer! The best!
These super simple Corned Beef and Cabbage Sliders with Guinness Mustard make it easy to join in the celebration, even if you can’t make the Dogtown Parade. These are so flavorful and require very little effort…my kind of meal. I know that doesn’t surprise you! :)
Happy St. Patrick’s Day all!

Yields 8
Ingredients
- 1 corned beef brisket with spice package
- 4 cups water
- 2 tablespoons sugar
- 2 tablespoons apple cider vinegar
- 1 cup potatoes, diced
- 1 cup white onion, sliced
- 1/2 cup carrots, diced
- 1/2 cup celery, diced
- 1/2 cup Dijon mustard
- 2 tablespoons honey mustard
- 2 tablespoons Guinness (or stout beer)
- 1 teaspoon dark brown sugar
- 8 sweet rolls, cut in half to make buns (I used King's Hawaiian)
- 1 cup prepared coleslaw
Instructions
- Place water, sugar, and vinegar in a large slow cooker on high heat. Add brisket and spice packet to mixture. Place potatoes, carrots, onion, and celery on all sides of brisket. Cook on high for 4 hours.
- Whisk together both mustards, Guinness, and brown sugar. Set aside.
- When brisket is fully cooked, slice into 1/4 inch slices.
- Stack 3-4 brisket slices on bottom half of bun, topped with coleslaw. Spread mustard on top part of bun to complete your slider. Serve with the veggie mixture. Enjoy!

Save Recipe




















How fun and tasty are these! Perfect for the celebration. Gotta say, the mustard sounds amazing!
Thank you so much Patricia!
My husband is going to flip when I mention this recipe, Becky! First the brownies and now this? I need another case of stout!
You are so sweet, thank you Melanie!
oh how cute are THOSE! Want want want!
Ha, thank you Dorothy!
I love a corned beef slider! I bet these are extra delicious with that mustard!
The mustard might just be my favorite part :) Thanks for stopping by Amanda!
I am in love with corned beef. These sliders are so cute I have to try them!
Thanks Shelby! I appreciate you stopping by!
Love everything about these and photos are terrific!!
Thanks mom :)
What a great idea to turn this St. Patrick’s Day classic into sliders! I bet these taste delicious, Becky.
Thank you Andi! And thank you for featuring my recipe the other day, that was so sweet!
My husband has been asking me to make corned beef and cabbage for years!!! haha and I always ignore him. Oops :)
Maybe it’s time – these sliders are adorable!
Thanks Ashley!!!
Darling and delicious looking. Of course! I’ve come to expect nothing less from you.
I’ve got the corned beef in the crockpot right now for St. Patty’s Day dinner tonight! We love sliders, and this is perfect for today!
This recipe has been chosen to be part of our Burgers, Sliders, and Dogs Recipe Roundup – we hope you will help us spread the word by sharing, pinning, and tweeting! All links go directly to your recipes and we hope you get lots of traffic! Kelli and Holli at Yum Goggle
Thank you so much!!!! Honored :)
Hi Becky,
Thanks for the recipe, it looks great. I’m going to make about 50 of these for a crowd, and was wondering if you have any thoughts on how much corned beef I should cook for that amount?
Thank you!
For 50 I would make about 6-8 of these, This recipe serves about 8. Hope you love it, thanks for stopping by!
These are awesome!! Thank you :) Question, I only have a crock pot… What would be the difference for cooking time & instructions?
Happy Pattys Day!