Chef John's Colcannon Recipe -
Chef John's Colcannon Recipe
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How to Make Colcannon
See how to make a traditional mashed potato dish for St. Patrick’s Day. See more
  • READY IN 35 mins

Chef John's Colcannon

Recipe by  

"Colcannon is probably my favorite St. Patrick's Day recipe. It combines the lovely, spring-is-finally-here-greenness of kale and leeks with the always alluring comfort of buttery mashed potatoes."

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Ingredients Edit and Save

Original recipe makes 6 servings Change Servings
  • PREP

    15 mins
  • COOK

    20 mins

    35 mins


  1. Boil potatoes in a large pot of salted water until tender, about 10 minutes. Drain and transfer potatoes to a large bowl. Add 2 tablespoons butter and lightly mash the potatoes.
  2. Boil kale and leeks in a large pot of water until tender, 5 to 7 minutes. Drain and transfer kale and leeks to a blender. Add white parts of the green onions and 2 more tablespoons butter; blend until smooth, scraping down sides as needed, 1 to 3 minutes.
  3. Stir pureed kale mixture into the bowl of potatoes and continue to mash. Season with salt and black pepper to taste. Add cream and stir until desired texture. Top with 2 tablespoons butter and green parts of the green onions.
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  • Chef's Note:
  • You can substitute kale with other leafy greens such as Swiss chard or cabbage.

Reviews More Reviews

Most Helpful Positive Review
Mar 17, 2013

I gave this four stars because I changed a few things but the results were great. First, I did not blend the greens. Instead, I chopped the kale and leek to pretty small pieces before boiling. I drained the greens and squeezed out all the excess water using paper towels. I also sauteed the green onions plus two cloves of garlic in one tablespoon of butter. Then I just mashed everything up with the cream. I thought the results were great and everyone at my St. Patrick's day party liked it.

Most Helpful Critical Review
Jan 10, 2013

While many of us have enjoyed Chef John's recipes, I must admit that this recipe will not be repeated in my kitchen. Pureeing the kale, leek and scallions left me totally unimpressed with the overall texture and presentation of the dish. Two tbsps of butter at every step was absolute overkill of a good thing as was the scallion and butter topping. I followed the recipe as written - no tweeking. Reviews, of course, are influenced by one's personal taste, so remember that this is "just my humble opinion".

Mar 20, 2013

I tried this as it was healthier Colcannon recipe than I usually make. It also looked pretty with the green kale. However, despite sauteeing the kale and leeks I thought the kale was tough. I prefer Dianne's Colannon found on this site.I did make this recipe twice as I did a test run before St. Patrick's Day.

Jan 28, 2014

My kids love this recipe. It was easy to make and super healthy

Jan 12, 2015

Made this as recipe states. Was really Tasty. But abit of a hot mess serving it thank god was for my kids and not for guests. I recently discovered chef johns recipes and I love them!

Mar 22, 2014

These were a huge hit at my St. Patrick's Day Pot Luck Party! Something different, fun and festive green! Kids love mashed potatoes and since the kale is put in the blender, there is nothing for the little one's to stick their nose up at. Just tell them it's food coloring! I did a triple batch to accommodate 12 people and it was just enough.

Oct 07, 2014

I made the mistake of just sauteeing the greens instead of running them through the blender. The flavor was good, but the texture would have been much better if I'd blended the ingredients according to the recipe.

Mar 21, 2014

This was wicked good! We did it with Kale as called for and it was really delicious. Had it with pork chops in pork gravy and warm brown bread. It'll be on our Easter menu with Ham.


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  • Calories
  • 310 kcal
  • 15%
  • Carbohydrates
  • 39.6 g
  • 13%
  • Cholesterol
  • 44 mg
  • 15%
  • Fat
  • 15.6 g
  • 24%
  • Fiber
  • 5.8 g
  • 23%
  • Protein
  • 5.7 g
  • 11%
  • Sodium
  • 179 mg
  • 7%

* Percent Daily Values are based on a 2,000 calorie diet.

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