Mix Jaggery powder and ghee together and with help of a beater whisk it till its all mixed and little forthy.
Add coffee, baking powder and salt in the Ragi flour and sieve it 2-3 times. At the point put the oven on preheat and grease the cookie tray.
Now gradually 2 tbsp at a time start mixing the flour in the Jaggery and ghee mixture and mix it.
Once all the flour is added , add little milk to help mixing everything in form of a dough.
You can use your hands to mix it but not to over mix or knead it.
Add finely chopped walnuts too and mix it.
Gently flatten the dough on a parchment paper and with cookie cutter cut our cookies 1/2 to 1 inch thickness.
Bake these for 8 mins on one side and then flip them and bake again for 3 mins.Let it cook down and then they would turn crispy.