How to Make It
Place the potatoes in a large pot and add 2 teaspoons salt and enough cold water to cover. Bring to a boil. Reduce heat and simmer until the potatoes are very tender, 20 to 25 minutes. Drain and return the potatoes to the pot.
Meanwhile, heat the oil in a small skillet over medium-low heat. Add the garlic and cook, stirring, until golden, 5 to 8 minutes.
Add the milk, butter, 1 teaspoon salt, and ¼ teaspoon pepper to the potatoes and mash to the desired consistency. Top with the garlic oil and sprinkle with the paprika.