What is
Butter is an edible fatty solid made from cream and milk by the process of churning.
  
Paneer, a kind of cheese, a South Asian cuisine, is an unaged cheese made by churning milk with vinegar, lemon juice or other acids.
  
Origin
China, India, Japan, Russia
  
Afghanistan, India, Iran, South asian countries like Bangladesh, Bhutan, India, Maldives, Tajikistan