In a large pot with enough cold water to cover, place the potatoes and garlic. Bring to a boil and cook until tender, about 15 to 20 minutes. Drain well in a colander and return the potatoes to the pot. Add the butter salt and white pepper, and mash with a potato masher. Continue mashing, while gradually adding the warm milk. Stir in the kale and serve immediately.
Recipe courtesy of B. Smith