Place the potatoes into a medium saucepan, cover with water and boil until tender about 10 minutes.
While the potatoes are cooking, melt the butter in a small saucepan and add the garlic. Saute over medium-low heat until fragrant but don’t let the garlic burn.
Once potatoes are done, drain them and add the garlic butter, chives, salt, and pepper. Mash to break up.
Add enough milk to achieve the consistency of mashed potatoes you prefer and mash until all lumps are gone.