Add the flour, sugar, baking powder, cardamom, and salt into the bowl, and mix together.
Then slowly add melted butter into the flour mixture, until throughly mixed.
Next, add rosewater and knead dough into a ball. Cover with plastic wrap and let it chill in the fridge for 1 hour.
Roll dough out if using cute cookie cutter shapes, otherwise form into small balls and gently press down with your thumb leaving a small print.
Bake for 10 minutes at 400 degrees, or until the bottoms of the cookies are slightly brown.
Sprinkle crushed pistachios on top and enjoy!
