Name: Colcannon (Mashed Potatoes with Kale)
Prep time: 10 min
Cook time: 25 min
Yield: 8 servings
Ingredients: 3 lbs russet potatoes (peeled and chopped); 5 Tbsp butter (divided, plus more for serving if desired); 8 cups chopped kale, about 1 large bunch (remove the tough stems first); 1 cup half-and-half or buttermilk; 1/2 tsp salt (or, to taste); 4 tsp horseradish sauce