I finally got brittle. It's absolutely gorgeous. It now looks like deep, dark, rich coffee. It was enticing enough for the hubs to try it without being asked. We do, however, have differing opinions on how it tastes.
I think it tastes like that last inch of coffee in the bottom of the pot that's been sitting on the burner for three hours because no one wants to make more. He thinks it's not that bad. At this point I feel I must disclose that he is the person who will drink that last inch of coffee that's been sitting on the burner for three hours (and he will make another pot).
Should I ever feel inclined to try this again (which I may), I'll definitely go stove top method and will keep the coffee beans out of it until the very non-bitter end.