Step 1

Place the potatoes in a large pot over high heat. Pour salted water into the pot until the potatoes are completely submerged. Bring the potatoes to a boil.

Step 2

Reduce the heat to medium-low and simmer for 20 to 25 minutes, or until the potatoes are fork-tender. Drain and transfer the potatoes into a large bowl.

Step 3

Mash the potatoes with a masher, fork, or electric mixer until the desired consistency is achieved.

Step 4

In a small saucepan over medium heat, cook the butter and half-and-half until melted and combined, about 3 to 5 minutes.

Step 5

Pour the butter mixture into the bowl of potatoes. Add the salt, black pepper, and garlic, and beat until light and fluffy. Add more half-and-half, one tablespoon at a time, if needed, until the desired creaminess is achieved.