6 large potatoes, peeled
4-6 tablespoons half-and-half or milk
1 teaspoon Kosher salt
1-1/2 onions, finely chopped
6 tablespoons butter, divided
1/2 of a small head of cabbage, sliced thinly
1. Slice peeled potatoes in half and place in pot. Fill with enough water to cover and boil for 25 minutes or until potatoes are soft. While the potatoes are cooking, melt 4 tablespoons of butter in large saucepan. Add minced onion and stir to coat with butter. Add cabbage over onions. Cover saucepan and cook over medium-low to medium heat for 20 minutes, stirring occasionally, or until cabbage is soft.
2. Drain potatoes and add half-and-half or milk and salt. Mash with electric mixer. Stir together onion and cabbage mixture with mashed potatoes. Spoon into an oven-safe dish and place under broiler until top is browned. Traditionally, colcannon is served with a deep well in the center filled with melted butter, so place 2 or more tablespoons on top and let it melt into the colcannon.
The Creative Cook