Garlic Parmesan Mashed Potato Casserole

1 Using a sharp knife, chop the scrubbed and peeled potatoes into 1” cubes.
2 Fill a large saucepan or Dutch oven with water, then add the potatoes to the water. Place the garlic cloves in the water, as well.
3 Season the water with a teaspoon of salt.
4 On the stovetop, heat the water and potatoes over high heat and bring to a boil. Cook until the potatoes are fork tender, about 20 minutes.
5 Drain the potatoes, and place back in the saucepan.
6 Measure out the butter, milk and 1 cup of parmesan cheese on top of the potatoes.
7 Using a hand mixer on a low speed, slowly blend the ingredients together until smooth and creamy. Season the potatoes with salt and pepper.
8 Preheat the oven to 350°F. Spray a baking dish with nonstick cooking spray, and set aside.
9 Transfer the mashed potatoes into the prepared baking dish. Sprinkle the additional ¾ cup cheese on top of the casserole.
10 When the oven is preheated, transfer the casserole to the oven.
11 Bake for 25 minutes, then turn up the heat to 425°F. Bake for an additional 15 minutes, or until the cheese has browned.
12 Remove from the oven, and let cool slightly.
13 Serve warm, and enjoy!