British & Irish Images are for illustrative purposes only, may be inaccurate, and do not guarantee the presence or absence of specific ingredients. 
Serving Images are for illustrative purposes only, may be inaccurate, and do not guarantee the presence or absence of specific ingredients. Colcannon
Creamy Irish mashed potatoes folded with wilted savoy cabbage, spring onions, and a pool of melted butter — simple, soul-soothing, and utterly delicious.
Contains common allergens
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Good to know
- Ready in under 30 minutes
Matched from this dish's own ingredients and timing. Browse more: 30-minute meals
Instructions
6 steps- 1
Boil the potatoes: Peel and chunk the potatoes. Boil in heavily salted water for 15-20 minutes until completely tender.
- 2
Cook the greens: While the potatoes boil, bring a separate small pot of water to a boil. Add the shredded cabbage or kale and boil for 3-5 minutes until tender but still vibrant green. Drain thoroughly and squeeze out excess water.
- 3
Infuse the dairy: In a small saucepan, heat the milk or cream with half of the butter and the chopped spring onions until the butter is melted and the milk is steaming (do not boil).
- 4
Mash the potatoes: Drain the potatoes well and return them to the hot pot to steam dry for 2 minutes. Mash them thoroughly until completely smooth.
- 5
Combine: Pour the hot milk and onion mixture over the mashed potatoes, folding it in gently. Add the cooked greens and fold again until evenly distributed.
- 6
Serve: Transfer the Colcannon to a serving bowl. Make a well in the center and place the remaining butter inside to melt. Serve hot.
Images are for illustrative purposes only, may be inaccurate, and do not guarantee the presence or absence of specific ingredients. Listahan Family Score™
75/100
Good fit for most families
Score reflects how well this recipe fits a typical busy household. In the app, your Family Score is personalized to your household's allergens, kids, and pantry.
Nutrition
per serving175
Calories
3 g
Protein
20 g
Carbs
9 g
Fat
Estimated per serving. Actual values depend on the brands and portions you use.
Listahan cooking guide
Chef notes & practical guide
Technique notes, ingredient swaps, serve-alongside ideas, storage guidance, and equipment for this recipe.
Cultural context
Colcannon is one of the oldest recorded Irish dishes, documented in writing from at least the early 18th century and likely much older as an everyday peasant food. The name comes from the Irish 'cal ceannann,' meaning 'white-headed cabbage,' and the dish was traditionally eaten on Halloween — known as Samhain in Ireland — when small prizes or charms were hidden inside the pot and finding them was considered a sign of fortune. The combination of floury potato and green vegetables made it a complete, sustaining meal for Irish agricultural workers, and it traveled with the Irish diaspora to become a beloved dish across North America.
Listahan note
This version uses kale or savoy cabbage fried briefly in butter until just wilted, folded into mash that is slightly looser than usual so the green runs through every forkful rather than clumping.
Technique cues
- Wilt the cabbage or kale in butter separately before folding into the mash — adding raw greens to hot potato steams them unevenly and can make the mash watery.
- Use more butter than feels reasonable: colcannon is deliberately rich, and the pool of butter that melts into the well in the center of each serving is both traditional and intentional.
- Make the mash slightly looser than you normally would by adding extra warm milk, because the green vegetable will tighten the texture when folded in.
Kitchen flow
- Parallel prep
- Boil the potatoes and wilt the greens simultaneously in separate pans; both should be ready within minutes of each other.
- Make-ahead
- Colcannon can be made up to 1 day ahead and refrigerated; reheat in a saucepan over low heat with a splash of milk, stirring gently.
- Leftover move
- Shape cold colcannon into patties and pan-fry in butter until crisp on both sides — this is how bubble and squeak is made and it is outstanding.
- Cleanup rhythm
- Two pots — one for potatoes, one for greens — and a masher; rinse both immediately after serving while still warm.
Ingredient brief
Role, handling, and swap guidance for each key ingredient.
floury potatoes
mash base
Purpose: High-starch potatoes produce the light, fluffy mash that defines colcannon; waxy varieties turn dense and gluey.
Handling: Peel, quarter, start in cold salted water, bring to a boil and simmer until completely tender, then drain and steam-dry briefly in the warm pot.
Adaptation: Yukon Golds give a richer, butterier mash that many find preferable even if slightly denser.
kale or savoy cabbage
green vegetable element
Purpose: Kale adds an earthy, slightly bitter counterpoint to the sweet potato and rich butter; cabbage is milder and more traditional.
Handling: Strip kale from the stems and slice into thin ribbons; cook in butter in a separate pan for 3-4 minutes until just wilted.
Adaptation: Spring onions and cabbage together are the most traditional combination; leeks offer a sweeter, more delicate flavor.
unsalted butter
richness and finishing component
Purpose: Butter is not just an enricher here — a pool of it placed in the center of each serving is part of the dish's identity and appeal.
Handling: Use cold butter cut into cubes to fold into the mash, then a separate piece placed in the well just before serving.
Adaptation: Plant-based butter works in both roles for a dairy-free version.
whole milk or cream
mash loosener
Purpose: Hot milk or cream heated before adding keeps the mash temperature up and produces a creamier, pourable texture rather than stiff mash.
Handling: Warm in a saucepan or microwave before adding; never add cold dairy to hot potato.
Adaptation: Oat milk produces a lighter mash with a slightly sweet note.
Technique notes
- The traditional serving is in a bowl with a well pressed into the center filled with a knob of butter that melts slowly as you eat; this is not decorative — it is the serving method.
- Season in layers: salt the potato cooking water, season the greens with salt and pepper in the pan, and taste again after combining — the correct seasoning level is higher than you might expect.
- Some versions include spring onions (scallions) cooked briefly in the butter with the greens; this adds a mild allium note that is particularly delicious.
Ingredient swaps
- Dairy-free direction
- Use oat milk and plant-based butter throughout; the dish comes together identically and the flavors are barely distinguishable.
- Extra-green direction
- Add a handful of peas or blanched spinach to the kale for more color and a sweeter, more complex green flavor.
- Leaner direction
- Reduce butter by half and use low-fat milk; the colcannon will be less rich but still very good.
Serve alongside
- Irish bacon rashers
- Boiled ham
- Roast pork shoulder
- Guinness stout
- Cold buttermilk (traditional)
Serving suggestions only — check pairings for your household's allergens.
Storage & reheating
- Keeps refrigerated for up to 3 days covered; reheat with a splash of milk over low heat.
- Freezes well for up to 1 month; thaw overnight before reheating.
Equipment
- Potato ricer or masher (ricer gives the smoothest result)
- Large saucepan for the potatoes with room to steam-dry after draining
- Second pan for wilting the greens
- Wooden spoon for folding without overworking
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