Is a quarter enough?

from what I hear, most people make it so there's about 0.5-1.5g worth of bud per brownie. A quarter of dank weed like that should be fine as long as you do it right. 

 

for Dank i would use a Half Ounce (14 grams is a half ounce)
 
If your making them with mids or lower grade than mid grade then Use an Ounce (28 grams is an Ounce)
 
Also cut the brownies however you Preference,large,small,long skinny... ect ect

 

It really depend's on how much eddy's you plan on making, and how much butter you want. A quarter of some fire should be enough to make you a good amount of budder. Make sure to follow all the steps correctly so you get the most out of your weed.
 
Here's a good recipe on how to make good brownies with only an 1/8th of weed.
http://the420times.com/2009/09/cooking-with-grandma-the-best-pot-brownies-youve-had/

 

Check out my brownie tutorial. look up "cannatwist" I used 5 grams for a batch of eight eds. If you use the recipe I have there and just use a quarter and cut the butter in half, you're all set. and yes...they'll be effective