warm potato salad

i made this 'accidentally' first time round, but everyone loves it, so here goes... boil 6 medium potatoes in their skins until soft. drain. allow to cool, peel and cut into largish cubes. add 1 finely chopped onion and about 3 tablespoons of fresh chopped chives. mixed 2 tablespoons of softened butter, 1 crushed clove of garlic, 4 tablespoons mayonnaise, salt and freshly ground black pepper to taste. stir through the potato, onion and chives. serve at room temperature.