3lbsRusset or Yukon Gold potatoespeeled and cut evenly
3cupsfinely shredded Savoy or green cabbage
1cupfinely shredded lacinato kale
4tablespoonbuttermore for serving
1cupwhole milk or heavy cream
4scallionsthinly sliced
1 ½teaspoonkosher saltmore to taste
¼teaspoonblack peppermore to taste
Instructions
Cook the potatoes. Fill a large pot with cold water and add 1 tablespoon of salt. Add the potatoes and bring to a boil. Cook until the potatoes are fork-tender, about 12 minutes.
Drain and dry. Drain the potatoes in a colander and let them rest for 5 minutes to release excess moisture and dry slightly.
Prepare the greens. In a wide skillet, melt the butter over medium heat. Add the kale and cabbage, sautéing until softened, about 8-10 minutes. Stir in the scallions and cook for another minute. Pour in the whole milk or heavy cream, season with salt and pepper, and stir well. Let it come just to a gentle simmer, then remove from the heat.
Mash and combine. In a large bowl, mash the potatoes until smooth. Fold in the warm cabbage mixture a little at a time, mixing gently until evenly blended. Taste and adjust seasoning as needed.
Serve. Transfer the colcannon to a serving dish. Make a small well in the center, add a knob of butter (about 1 tablespoon), and let it melt over the top before serving warm.