Creamy colcannon mashed potatoes made with tender cabbage, butter, and fluffy potatoes—an easy traditional Irish side dish that pairs perfectly with corned beef or sausage.
Bring a pot of water to a boil and add a teaspoon of kosher salt. Add 1½ pounds red-skinned potatoes to the boiling water and cook for 15 minutes or until the potatoes are tender. (Check this by sticking the largest potato to the center with a sharp knife. If it comes out smoothly on its own, the potatoes are done).
COOK THE CABBAGE:
Place a large skillet over medium heat and add 2 tablespoons of butter and half a teaspoon of kosher salt. When the butter melts, add ½ small cabbage and stir to coat. Place the lid on the pan and cook for a minute. Stir the cabbage.
Cook the cabbage for 3-4 minutes, stirring after each minute so the cabbage doesn't burn. When the cabbage begins to wilt, stir in ⅓ cup water and place the lid on the pan to steam the vegetable. Steam for 3-4 minutes or until the water has mostly evaporated. Set aside.
MASH THE POTATOES:
Drain the potatoes and transfer them to a large mixing bowl.
Use a potato masher to roughly mash the cooked potatoes (skins and all). Add the remaining 3 tablespoons of butter and ¾ cup half-and-half, a little at a time and continue to mash and blend the potatoes. They should be fairly smooth, but rustic. (Note: if your potatoes seem too stiff, you can add addtional half and half 2 tablespoons at a time).
Add the remaining half teaspoon of kosher salt and ½ teaspoon freshly ground black pepper. Mix well.
Stir in the cooked cabbage until well combined. Taste for seasoning and adjust as necessary.
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Notes
You can make this colcannon recipe a day or two ahead of time.
Store the cabbage and potatoes in an airtight container in the refrigerator for 3-5 days.
Reheat in the microwave in 45-second bursts, stirring after each.
Or reheat in a saucepan with a tight-fitting lid over medium heat, adding 2-4 tablespoons of warm milk to help loosen it up. Stir occasionally so the colcannon doesn't burn.
To freeze, store in an airtight freezer-safe container for up to 2 months.