The biggest problem for me was that they were so very banana-y, and I love bananas, so if I'm saying there's too much banana, there might be some truth to that statement. Also, they didn't bake thoroughly, I don't think; they were very gooey, and not in the awesome way; in the "is this a brownie, or slightly underdone fudge?" way.
I'm trying to think of what I might have done wrong, but the oven was the right temp, the ingredients were fine, and I gave them plenty of time to sit and cool. I think it might be the recipe itself.
I dunno. Anybody else ever made the Banana Split Brownies? What did you think of them? If you've tinkered with the recipe, what did you do with it? (I'm more of a cook than a baker, so I'm always hesitant to futz around with baking recipes, lest I make something too unspeakably horrible.)