I just ran across a great post at Get Rich Slowly that talks about making tea out of Raspberry leaves. There’s also a nice list of other edible “weeds” that can be eaten or steeped.

I simply tug up the young raspberry sprouts (under one foot tall) and let them dry between two window screens, laying flat on the sidewalk for a few days in the sun. (I bought my screens at garage sales.)

That’s probably a better way to do it than in the microwave.