INGREDIENTS
2 1/2 lb
thin-skinned potatoes, (about 4 medium) peeled and cut into 1 ½ -inch chunks
1 cup
milk, warmed
4 tbsp
unsalted butter, melted plus more for serving if desired
6 oz
shredded extra-sharp cheddar cheese
2
to 5 teaspoons freshly grated or prepared horseradish, to taste
2 tsp
chopped fresh dill
1 tsp
salt
1/4 tsp
ground pepper, preferably white
1 tbsp
avocado oil or organic canola oil
3
scallions, sliced greens and whites separated
2 cloves
garlic, minced
1
small bunch lacinato kale, stems removed and finely shredded (about 6 cups)