Chocolate Maple Porter, from Brooklyn Brew Shop. It tasted great, but didn't turn out very clear. It was also a bit over-carbed, but still as good as or better than anything I had ever paid for in a bar. Since then, I've acquired the actual recipe for this one, so I plan to brew it later this year, along with a Peanut Butter Porter, and see if I've improved during the 15 or so brews since this first one.
The first brew that was "my" recipe was a 50/50 mix of Maris Otter and wheat. I should know how it turned out in a few days, as bottle conditioning is almost finished. I'll put it in the fridge over-night, at least, and give it a try.