Melt 150gm sugar in a thick bottom pan. When the colour changes to light red, pour it to a greased flat vessel evenly. Allow to cool and take it out of the vessel and grind.
Sieve all the 5th ingredients together. Mix well the vanaspati or butter with the prepared sugar powder and the coarsely ground sugar. Add egg yolk and ginger juice alternately into it and mix. Add sieved flour, cashew nuts and vanilla essence and knead without much pressure, to make a fine dough. Make small balls from the dough and shape it like cashew nuts. Bake the biscuits at 300oC for about 20 minutes.