Mash cloves of garlic and chop sticks of butter into slices so that the butter can melt easier. Add chives, salt, and pepper to the potato's, then add mashed Garlic. Add half of the stick of butter and then mash the potatoes. Continue to add rest of butter as you go until it reaches the consistency you prefer. I prefer chunky mashed potatoes and usually go for a more Potato salad style consistency.