What is
Smetana is a thick, yellowish- white and slightly sour tasting cream that contains about 40% of milk fat.
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
Russia
Afghanistan, India, Iran, South asian countries like Bangladesh, Bhutan, India, Maldives, Tajikistan