Potatoes au Gratin - Mother's Bistro

Ingredients

• 3 pounds russet potatoes (about 3 medium)
• 1 ½ teaspoons minced garlic (about 2 cloves)
• 1 tablespoon unsalted butter, softened, or nonstick spray
• 2 teaspoons salt
• ¾ teaspoon freshly ground black pepper
• 3 cups half-and-half or heavy cream
• 3 cups packed grated sharp cheddar cheese