Ingredients
Metric weights use grams. US weights use ounces; liquids use fluid ounces. Conversions are rounded. Spoon measures use 5 ml teaspoons and 15 ml tablespoons; cups use 240 ml.
Serves 6
Potatoes
Greens
Finish
Equipment
Kitchen scales; measuring jug and spoons; knife; cutting board; mixing bowls; saucepan with lid; sieve; heatproof spoon; spatula.
Check all product labels and cross-contact. Diet groups describe this listed recipe, not every substitution.
Steps
Boil · About 20 min
- Cook 1000 g potatoes, peeled and cubed, 1800 ml water, ¾ tsp salt 18–20 minutes until tender; drain well.
Check: Look for this result: tender; drain well.
Greens · About 8 min
- Soften cabbage and onions in butter from 300 g cabbage, shredded, 50 g spring onions, sliced, 50 g butter, 150 ml milk 8 minutes, then add milk and warm.
Mash · About 7 min
- Mash potatoes, fold in greens and milk and serve with 30 g butter melting on top.
Tips
- Drain potatoes thoroughly before mashing.
- Judge Colcannon by the texture and doneness signs in its steps. Your pan and heat affect how long Colcannon takes to cook.
Substitutions
- Use kale instead of cabbage.
Storage
- Get perishable Colcannon into the fridge within two hours, or within one hour above 32°C / 90°F. Eat Colcannon within two days, keeping it covered at 4°C / 40°F or colder.
- Bring cooked Colcannon to 74°C / 165°F, stirring or turning it for even heating. When Colcannon is part of the meal, serve cold salads, dips and chilled desserts straight from safe refrigeration.
Make ahead
- Prepare the measured ingredients for Colcannon one day ahead. For Colcannon, refrigerate chopped vegetables apart from the other perishable ingredients. Follow the cooking stages for Colcannon on the day of serving.
FAQ
What matters most when making Colcannon?
Drain potatoes thoroughly before mashing.
What can I substitute in Colcannon?
Use kale instead of cabbage.
Can I prepare Colcannon ahead?
Prepare the measured ingredients for Colcannon one day ahead. For Colcannon, refrigerate chopped vegetables apart from the other perishable ingredients. Follow the cooking stages for Colcannon on the day of serving.
Food safety references
FoodSafety.gov: cooking temperatures · Food Standards Agency: rice storage and reheating


