Yes. Anytime you cook cannabis, it will stink.

Like the above poster said, the best way to make brownies is to cook the cannabis in either oil or butter. There are plenty of cannabutter recipes going on in the Recipe forum.

After you make the canna oil/butter, just open some windows and doors. It will take about an hour to fully air out.

After the canna oil/butter is made, then you cook it into something, it won't smell near as bad. It might stink a bit, but just barely.

Good luck.