Question

why do we add curd to bhaturas and rava(sooji) idlis??
from microorganisms- friend and foe​

Answer 1

Curd is added while making idli and bhatura dough as curd contains Lactobacillus bacteria that undergoes anaerobic respiration and in this process it acts on sugar of the flour and releases carbon dioxide gas, this gas make the dough rise and when baked or fried gas escapes leaving the idli or bhatura soft and spongy.