Place olive oil and garlic cloves in a small pan and simmer slowly until garlic is browned. Puree garlic and oil in blender and reserve.
Cut potatoes into medium-sized chunks. Place in cold water. Bring to a boil. Cook until potatoes are just tender. Drain potatoes and return to pot. Add all remaining ingredients plus the olive oil/garlic puree, and hand mash until smooth.
To serve, place a large spoonful in a bowl. Garnish with grated Romano cheese.