Take besan in a bowl and add watermelon juice,salt and ginger paste

Whisk finely to avoid lumps

Now cook it in microwave fir 3 min.

And stir it

Again cook for 2 min.stir it

Repeat this till 8 min.

Then check that it start leave plate

Then spread it on aluminium foil or baking sheet

Let it cool then make roll

Cut in small pieces

Make tadka and temper upon khandvi