What is
Quark is a type of fresh dairy product, common for the cuisines of German-speaking countries made by warming soured milk until the desired degree of coagulation (denaturation, curdling) of milk proteins is met, and then strained.
  
Lassi is a popular, traditional, yogurt-based drink from the Indian Subcontinent and is popular in India. Lassi is a blend of yogurt, water, spices and sometimes, fruit