I used to do partial mashes using a bag in my 5 gallon kettle. You are pretty close to the limit of what I felt comfortable handling, so I understand doing the extract.
A quarter pound of the chocolate malt is probably fine, but you could do a little more if you want to - maybe up to 8 or 10 ounces.
A quarter pound of the chocolate malt is probably fine, but you could do a little more if you want to - maybe up to 8 or 10 ounces.