Colcannon Potatoes (Irish Mashed Potatoes)

These Colcannon Potatoes are creamy, comforting, and hearty! Yukon Gold potatoes are combined with earthy green cabbage, butter, whole milk, and a hint of garlic. They’re perfect as a side for your St. Patrick’s Day feast or dinner any night of the week.

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Why This Recipe Works

Colcannon potatoes are a must on your dinner table if you’re celebrating St. Patty’s Day! Colcannon is a traditional Irish dish made from mashed potatoes and shredded cabbage or kale. Highlighted by green onions, butter, and milk, it is ultra-rich, savory, and satisfying.

Relying on staple ingredients, this Emerald Isle classic is budget-friendly and easy to prepare for cooks of all levels. Whether you’re hosting a large family gathering or cooking for one, this versatile side dish caters to all.

Pair it with Irish mains, like corned beef, Guinness stew, shepherd’s pie, and Irish soda bread, for the ultimate flavor experience. Whatever the case, the combination of buttery Yukon Gold potatoes, tender cabbage, and savory aromatics never fails to impress.

Ingredients

Yukon Gold Potatoes: Known for their buttery texture and rich flavor, Yukon Golds are the ideal choice for mashed potatoes.
Olive Oil: To sauté the veggies with butter, which helps keep the dish a little lighter. Use extra-virgin olive oil for the best results.
Unsalted Butter: This enhances the creaminess and richness of the potatoes and sautéed cabbage. Use unsalted butter to better control the sodium levels.
Onion: Provides a sweet, aromatic base that complements the savory ingredients. Both white and yellow onion work equally well.
Green Cabbage: Brings a mild, slightly sweet flavor and a crunchy texture that contrasts perfectly with the creamy potatoes.
Garlic: Adds a pungent, savory layer of flavor that gives colcannon potatoes depth.
Whole Milk: Provides a rich, creamy consistency to the mashed potatoes.
Half and Half: Adds an extra layer of creaminess and luxurious texture to the dish.
Green Onions: Offer a mild, slightly sharp taste and a burst of color, enhancing the overall flavor and presentation of the dish.

Instructions

Boil the Potatoes: Place your peeled and halved Yukon Gold potatoes in a pot, submerged in cold water with a pinch of salt. Bring to a boil, then simmer them until they’re fork-tender, about 12-15 minutes.
Mash the Potatoes: Drain the potatoes well and return them to the pot for mashing. Add most of the butter, followed by warmed whole milk and half and half. Season the potatoes with salt to taste.
Cook the Veggies: While the potatoes are boiling, heat a mix of olive oil and butter in another pan. Sauté the diced onions and shredded cabbage with a bit of salt, letting both cook down until tender. Add in the garlic and cook for an additional minute.
Combine & Garnish: Fold the cabbage and onion mixture into the mashed potatoes, along with finely chopped green onions. Transfer your colcannon potatoes to a serving bowl and top with additional butter and chopped green onions before serving.

Substitutions & Variations

Potatoes: No Yukon Golds? Feel free to use Russet or red potatoes for a different texture and flavor.
Dairy-Free: For a lighter or allergy-friendly version, use olive oil instead of butter and a plant-based milk or cream alternative.
Cabbage: Swap green cabbage with savoy cabbage or kale for a different taste.
Add-ins: Stir in cooked, crumbled bacon or pancetta for a meaty dimension, or add roasted garlic for deeper flavor.
Spicy: Add a pinch of cayenne pepper or paprika for an extra layer of warmth.
Onions: You can substitute white or yellow onions for red onions or leeks, depending on what you have on hand or prefer.

Storing & Reheating

If you have leftover colcannon potatoes, follow these storage tips to keep them as fresh as when they were first made:

Fridge: Store the potatoes in an airtight container for up to 3-4 days. The flavors often meld and deepen over time.
Freezer: It’s best not to freeze this dish, as potatoes and cabbage can become grainy and watery after freezing and thawing.
Reheating: Warm up leftovers in a pot over low heat, adding a splash of milk or butter if they seem dry. Stir the potatoes occasionally to ensure even heating.

Expert Tips

Potato Selection: Choose high-starch potato varieties like Yukon Golds for the fluffiest, creamiest colcannon potatoes.
Don’t Cut Small Pieces: Only cut the potatoes in half, or maybe quarters if they’re large, to prevent them from absorbing too much water as they cook.
Cold Water Start: Begin boiling your potatoes in cold water to ensure they cook evenly from the outside in.
Season in Layers: Salt the water for boiling potatoes and season each component as you cook for an even depth of flavor.
Don’t Overwork: Mash the potatoes gently to avoid developing a gluey texture.
Warm Your Dairy: Heat the milk and half-and-half cream before adding the mixture to the potatoes to maintain their warm temperature and absorb better.
Sauté the Cabbage Properly: Cook the cabbage until it’s just tender, not soggy, to preserve its hearty texture and sweetness.
Garlic Timing: Add the garlic to the cabbage at the end of sautéing to prevent burning and ensure a fresh, vibrant flavor.

FAQs

Is there a shortcut to soften the cabbage quicker?

To speed up the process, you can microwave the shredded cabbage for 2-3 minutes before adding it to the pan to sauté.

How do I prevent the potatoes from becoming gummy?

Avoid over-mashing at all costs! Use a potato masher instead of an electric mixer, and add warm dairy gradually.

How do I know when the potatoes are cooked perfectly?

The potatoes should be tender enough that a fork can slide through easily without any resistance.

If you enjoyed these colcannon potatoes, test out some more of my favorite potato recipes:

If you try this Colcannon Potatoes recipe, let me know what you think! Rate and review this recipe in the comments below. Don’t forget to take a picture and tag me on Instagram @lenaskitchenblog!