Preheat oven to 350 degrees F.

Slice of very top of garlic head and place in a small baking dish.

Pour olive oil on top, cover with foil, and bake for 1 hour. Let cool.

Using 1 tbsp of oil from baking dish, heat in a pan and add onions, cooking until tender, about 10-minutes.

Add potatoes to pan with onions.

Press out garlic from each clove and add to same pan along with 3 cups of water.

Allow to boil and reduce heat to low and let simmer until potatoes are tender.

Pour half of potato mixture in blender and blend on low until smooth.

Pour blended mixture in a large bowl.

Repeat with potato mixture in pan.

Return all to saucepan and stir in half & half and salt.

Heat to boiling, stirring constantly.

Serve hot or cold with chives.