Colcannon potatoes are Ireland’s beloved comfort food that transforms simple ingredients into something truly magical. This traditional dish combines creamy mashed potatoes with tender cabbage or kale, creating a soul-warming side that’s perfect for any occasion. The beauty of colcannon potatoes lies in their simplicity – just a handful of ingredients come together to create a dish that’s both rustic and elegant.
Why You’ll Love This Recipe:
Colcannon potatoes offer the perfect balance of comfort and nutrition in every bite. The creamy, buttery texture of perfectly mashed potatoes mingles beautifully with the slight crunch and earthy flavor of sautéed cabbage or kale. This recipe is incredibly versatile, making it an ideal accompaniment to everything from holiday roasts to weeknight dinners. The preparation is straightforward enough for beginners, yet the results are impressive enough to serve at special gatherings. Plus, colcannon potatoes are naturally vegetarian and can easily be made vegan with simple substitutions. The dish also provides excellent nutritional value, combining the potassium and vitamin C from potatoes with the fiber and vitamins from leafy greens.
Ingredients You’ll Need:

- 2 pounds Russet or Yukon Gold potatoes, peeled and cut into chunks
- 4 cups green cabbage or kale, finely chopped (about half a small head)
- 4-5 green onions (scallions), sliced thin
- 4 tablespoons unsalted butter, divided
- 1/2 cup whole milk or heavy cream, warmed
- 1 teaspoon salt (or to taste)
- 1/2 teaspoon freshly ground black pepper
- Optional: 4 strips crispy bacon, crumbled, or fresh chives for garnish
How to Make Colcannon Potatoes:
Step-by-Step Instructions:
Step 1: Prepare the Potatoes Place the peeled and chunked potatoes in a large pot and cover with cold, salted water by about 2 inches. Bring to a boil over medium-high heat, then reduce to a steady simmer. Cook for 15-20 minutes, or until the potatoes are fork-tender and easily pierced.
Step 2: Sauté the Greens While the potatoes cook, heat 2 tablespoons of butter in a large skillet over medium heat. Add the chopped cabbage or kale and cook, stirring occasionally, for 5-7 minutes until softened and slightly caramelized. Add the sliced green onions and cook for another 2 minutes. Season lightly with salt and pepper, then set aside.
Step 3: Mash the Potatoes Drain the potatoes thoroughly and return them to the pot. Let them sit for a minute to allow excess moisture to evaporate. Using a potato masher or ricer, mash the potatoes until smooth. Gradually add the warmed milk or cream, mixing until you reach your desired consistency.
Step 4: Combine Everything Fold the sautéed cabbage mixture into the mashed potatoes along with the remaining 2 tablespoons of butter. Mix gently until well combined. Taste and adjust seasoning with salt and pepper as needed.
Step 5: Serve Transfer the colcannon potatoes to a serving bowl and make a small well in the center. Add a pat of butter to the well if desired, and garnish with crispy bacon bits or fresh herbs.
Helpful Tips:
Choose the right potatoes for the best texture – Yukon Gold potatoes create naturally creamy colcannon potatoes, while Russets produce a fluffier result. Always start potatoes in cold water to ensure even cooking throughout. Warm your milk or cream before adding it to prevent the potatoes from becoming gluey. Don’t overmix once you add the liquid, as this can make the potatoes gummy. For the smoothest texture, pass the potatoes through a ricer or food mill before adding liquid. If using kale instead of cabbage, remove the tough stems and massage the leaves slightly before chopping to help break down the fibers.
Details:
Prep Time: 15 minutes
Cook Time: 25 minutes
Total Time: 40 minutes
Servings: 6-8 people
Difficulty: Easy
This traditional Irish recipe dates back centuries and was originally created as a way to stretch potatoes with seasonal vegetables. The name “colcannon” comes from the Irish “cál ceannann,” meaning white-headed cabbage. Traditionally served on Halloween night, colcannon potatoes were often made with hidden charms or coins for good luck.
Notes:

For a richer flavor, substitute some of the milk with sour cream or cream cheese. The dish can be made dairy-free by using plant-based butter and unsweetened almond or oat milk. If you prefer a smoother texture, strain the potatoes through a fine-mesh sieve after mashing. Colcannon potatoes taste even better the next day, as the flavors have time to meld together. To prevent the potatoes from turning gray, add them to the pot quickly after peeling, or place them in cold water with a splash of lemon juice.
Frequently Asked Questions:
Can I make colcannon potatoes ahead of time? Yes, colcannon potatoes can be prepared up to 2 days in advance. Store them covered in the refrigerator and reheat gently on the stovetop with a splash of milk, or in the microwave, stirring frequently.
What’s the difference between using cabbage and kale in colcannon potatoes? Cabbage provides a milder, slightly sweet flavor and softer texture, while kale adds a more robust, earthy taste and maintains a bit more bite. Both are traditional and delicious options.
Can I freeze colcannon potatoes? While possible, freezing isn’t recommended as the texture can become grainy when thawed. It’s best to make fresh or store in the refrigerator for up to 3 days.
How do I fix colcannon potatoes that are too thick? Gradually add warm milk or cream, one tablespoon at a time, while gently mixing until you reach the desired consistency.
Can I use other vegetables in colcannon potatoes? Traditional colcannon uses cabbage or kale, but you can experiment with leeks, spinach, or even roasted garlic for different flavor profiles.
Storage Instructions:
Store leftover colcannon potatoes in an airtight container in the refrigerator for up to 3 days. To reheat, place in a saucepan over low heat and stir in a splash of milk or cream to restore the creamy texture. You can also reheat individual portions in the microwave, stirring every 30 seconds to ensure even heating. For best results, let the colcannon potatoes come to room temperature before reheating to prevent uneven warming. If the mixture seems too thick after storage, thin it with a little warm milk or butter.
Conclusion:
Colcannon potatoes represent the heart of Irish comfort food – simple ingredients transformed into something extraordinary through tradition and technique. This versatile dish brings together the creamy satisfaction of perfectly mashed potatoes with the nutritious goodness of leafy greens, creating a side dish that’s both comforting and sophisticated. Whether you’re serving it alongside a holiday feast or as part of a cozy weeknight dinner, colcannon potatoes deliver authentic Irish flavor that connects us to generations of home cooks who understood that the best dishes come from the heart. The beauty of this recipe lies not just in its taste, but in its ability to turn everyday ingredients into a memorable culinary experience that will have your family asking for seconds.