Soak 1 cup cashews in warm water for 15 to 20 minutes if needed, then drain and dry completely
Grind the cashews into a fine powder in short pulses
Sift the cashew powder to remove any coarse bits
In a pan, combine 1/2 cup sugar and 1/4 cup water
Heat until the sugar dissolves and forms a one-string syrup
Add the cashew powder to the syrup on low heat
Stir continuously until the mixture starts leaving the sides of the pan
Add 1 teaspoon ghee
Mix until the dough forms a smooth mass
Turn off the heat and let it cool slightly
Knead the mixture lightly while still warm
Place it between two sheets of parchment paper
Roll it out evenly to about 1/4 inch thickness
Cut into diamond shapes
Let the pieces cool completely
Garnish with edible silver leaf if desired
Store in an airtight container