Prep Time: 20 minutes
Cook Time: 30 minutes
Total Time: 50 minutes
Difficulty: Easy
Servings: 6-8 as a side dish
Colcannon is the epitome of Irish comfort food. Far more than just “mashed potatoes with greens,” this dish is a creamy, buttery, and soul-satisfying blend of fluffy potatoes, tender cabbage or kale, and plenty of scallions. It’s a staple for Halloween and St. Patrick’s Day, but its simple, hearty goodness makes it a perfect side dish for any cold-weather meal. Whether served alongside a classic Irish stew, with bangers (sausages), or enjoyed on its own with a well of melted butter in the center, this Colcannon recipe will transport you straight to the Emerald Isle.
What is Colcannon?
The name comes from the Gaelic cál ceannann, which translates to “white-headed cabbage.” Traditionally, it was a simple, affordable meal made from pantry staples. Over time, it has evolved into a beloved classic. The magic lies in the technique: perfectly cooked potatoes are mashed with hot milk and butter until smooth, then folded with gently sautéed greens and scallions. The result is a luxurious, flavorful mash with wonderful texture.
Why You’ll Love This Recipe
Authentic Flavor: This recipe sticks to the traditional methods and ingredients for a truly authentic taste.
Perfect Texture: We’ll show you how to get that perfect balance of creamy and fluffy.
Versatile Side Dish: It pairs beautifully with meats, stews, or even fried eggs.
Make-Ahead Friendly: You can prepare most of it in advance for easy entertaining.
Ingredients
For the Potatoes:
2 kg (about 4.5 lbs) Russet or Yukon Gold potatoes, peeled and quartered
1 tablespoon kosher salt (for the boiling water)
For the Greens & Aromatics:
450 g (1 lb) green cabbage or curly kale (about 1/2 a medium head)
6 scallions (spring onions), finely chopped (white and green parts)
240 ml (1 cup) whole milk
115 g (1 stick / 8 tbsp) unsalted butter, plus extra for serving
1 teaspoon kosher salt, plus more to taste
1/2 teaspoon freshly ground black pepper, plus more to taste
For Serving (Optional but Traditional):
Extra knob of butter
Instructions
Part 1: Prepare the Potatoes and Greens (10 minutes active)
Prep the Potatoes: Peel the potatoes and cut them into uniform, quartered pieces. This ensures they cook evenly. Place them in a large pot or Dutch oven and cover with cold water by about an inch. Add 1 tablespoon of salt to the water; this seasons the potatoes from the inside out.
Prep the Greens: While the potatoes are waiting to boil, prepare your greens. If using cabbage, remove the tough core and thinly slice the leaves. If using kale, strip the leaves from the tough central stems and chop the leaves into bite-sized pieces. You should have about 8-10 cups of chopped greens, which will wilt down significantly.
Part 2: Cook the Components (20 minutes active)
Boil the Potatoes: Bring the pot of potatoes to a boil over high heat. Once boiling, reduce the heat to a simmer and cook for 15-20 minutes, or until the potatoes are fork-tender (a knife or fork should slide into a piece with no resistance).
Simmer the Greens: While the potatoes are boiling, combine the chopped greens, chopped scallions, milk, and 115g (1 stick) of butter in a separate, large saucepan or skillet. Season with 1 teaspoon of salt and 1/2 teaspoon of pepper.
Cook the Greens: Place the saucepan over medium heat. Bring the mixture to a gentle simmer, then reduce the heat to low, cover, and cook for about 10-15 minutes, stirring occasionally. You want the greens to be completely tender but not mushy, and to have absorbed some of the milky, buttery liquid. They will have wilted down considerably. Once tender, keep the mixture warm over the lowest possible heat.
Part 3: Mash and Combine (10 minutes active)
Drain the Potatoes: Once the potatoes are tender, carefully drain them in a colander. Let them sit in the colander for a minute or two to allow excess steam to escape; this helps ensure a fluffier, not watery, mash.
Return to Pot: Return the drained potatoes to the hot pot you boiled them in. Place the pot back on the stove over low heat for about a minute, shaking it occasionally, to dry them out further. This is another key step for perfect mashed potatoes.
Mash the Potatoes: For the smoothest mash, use a potato ricer or food mill. If you don’t have one, a standard potato masher works great for a more rustic texture. Mash the potatoes until they are smooth and free of lumps.
Combine Everything: Pour the warm green-onion-milk-butter mixture over the mashed potatoes.
Mix and Season: Using a sturdy spoon or spatula, gently fold the mixture into the potatoes until everything is thoroughly combined and the colcannon is a uniform, pale green color. Taste and adjust seasoning with more salt and pepper if needed. Remember, potatoes need a fair amount of salt to taste their best.
Part 4: Serve (5 minutes)
Pile it High: Spoon the hot colcannon into a large, warm serving bowl.
The Finishing Touch: Make a well in the center of the mound and place a generous knob of extra butter. Watching it melt into a golden pool is pure magic.
Serve Immediately: Colcannon is best enjoyed hot, straight from the kitchen. Serve it alongside your favorite main course or simply with a spoon.
Tips for the Best Colcannon
Potato Choice is Key: Starchy potatoes like Russets or all-purpose Yukon Golds are ideal. Waxy potatoes (like red potatoes) won’t mash as fluffily.
Don’t Over-Mash: Overworking the potatoes can make them gummy and gluey. Mash just until combined.
Warm the Milk: Adding a cold liquid to hot potatoes can cool them down and also lead to a gluey texture. Keeping the milk mixture warm solves this problem.
Use Real Butter: This is not the time for margarine. Good quality, unsalted butter is what gives colcannon its signature rich and creamy flavor.
What to Serve with Colcannon
Colcannon is a fantastic companion to so many dishes:
Classic Pairings: Serve it with Irish Bangers, Guinness Beef Stew, or Pan-Seared Salmon.
With Roasts: It’s a wonderful alternative to regular mashed potatoes with a Sunday roast chicken or beef.
As a Main Dish: For a simple, satisfying meal, top a bowl of colcannon with a fried egg and a sprinkle of fresh chives.
Storage and Reheating
Storage: Store any leftovers in an airtight container in the refrigerator for up to 3 days.
Reheating: The best way to reheat colcannon is on the stovetop over low heat, adding a splash of milk and an extra knob of butter to revive its creamy texture. You can also reheat it in the microwave, but the texture may be slightly less perfect.
Nutrition Information
Please note that the following nutrition information is an estimate and is provided for informational purposes only. It is calculated using standard values and may vary based on the specific ingredients and brands used.
Serving Size: 1 serving (based on 8 servings)
Calories: 345
Total Fat: 15g
Saturated Fat: 9g
Trans Fat: 0g
Cholesterol: 40mg
Sodium: 680mg (varies based on salt added)
Total Carbohydrate: 48g
Dietary Fiber: 6g
Total Sugars: 6g (naturally occurring from milk and vegetables)
Protein: 8g