I kept pretty good records. I'm in the middle of moving to a new house, and the records are there but I can try to piece it together
Recipe
8 oz Brown malt
8 oz caramel 40 L
8 oz chocolate malt
6 # amber malt extract
1.5 oz Willamette hops (bittering)
.5 oz Willamette hops (finishing)
Munton's dry yeast packet
procedure: I steeped the grains in a grain bag for 35 minutes at 155 F with 2 gal water, removed the pot from the heat. Stirred in extract while heating to boil, add hops at boil, boil 60 minutes, add finishing hops for last 2 min. Cooled to 75 F in about 10 minutes with a wort chiller, then added to an ale pail primary with water up to 5 gal. Pitched the reconstituted yeast, sealed and airlocked.
Fermentation was pretty much done after 2 days, left in primary for 1 week total. Racked to secondary for 2 weeks, then bottled. The bottles are now 3 weeks old and the carbonation and head retention are good.
As far as describing the aftertaste, it's pretty hard to do. It's not at all a bitter taste, I guess if I had to describe it I would call it a syruppy coffee tasting flavor. And it's very mild but it's definitely there.