Thanksgiving side dishes are as anticipated as the turkey itself, and these mashed potatoes are destined to become a holiday favorite. They’re creamy and rich, making classic mashed potatoes even better with cheese, garlic, and sour cream.
Place potatoes in a large pot. Rinse with water, drain, then add enough cold water to the pot to cover the potatoes by 2 inches. Set the pan on a stovetop burner.
Add the garlic cloves and about ¾ teaspoon of salt to the water. Bring the potatoes to a boil; cook until they are fork-tender, about 15-20 minutes.
Drain potatoes and garlic, then put back into the hot pot. Set the pot over the heat again and quickly stir the potatoes to release some of their moisture. Remove the pot from the heat.
Add the diced butter to the pot. Mix or mash the potatoes to the desired consistency using a hand mixer or potato masher. Add the cheddar cheese and sour cream to the pot. Fold the sour cream and cheddar cheese into the mashed potatoes using a rubber spatula. Starting with ⅓ cup, add half and half to the potatoes and gently stir. Repeat until the desired consistency is reached. Season the mashed potatoes with salt and freshly ground black pepper. Sprinkle with chopped chives or serve with chopped chives on the side.