I have only made dosa batter, yaar, not Amritsari kulcha. But if a thin layer of wet rava can hold on to a hot tawa, maybe their dough sticks to the tandoor wall the same way. From my life, I know a surface must be perfectly hot and the mix must have just the right touch – too wet and it slips, too dry and it won't catch. My guess is their skill is in that perfect, hot slap against the clay.
#javelin#throws
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