Any good coffee shops near Schipol that sells good weed and edible weed like in the form of brownies or cakes.

As far as I know, there are none within walking distance of Schiphol.
I think De Kade is the nearest, but requires a 10-15min cab ride.
It's about 8 miles away at Stadionkade 107, 1076 BN Amsterdam.
I couldn't guarantee that it's still open as it's been a long time.
In 15-20mins you can be in the heart of Amsterdam, so......