As promised (well, a little later than promised), here's the recipe for the Tower of London Porter which won Best of Show at the Between the Bluffs Beer, Cheese, and Wine Festival 2010.
I have mentioned before on this blog that Fuller's London Porter is one of my all-time favorite beers. Just fabulous. So I have wanted for a while to try a homebrewed version of it. I found one on the 'Net, ostensibly adapted from the recipe provided by the Real Ale Almanac, by Roger Protz.
I actually brewed 11 gallons of this, but the recipe below is proportioned for the more common 5.5 gallon batch (accounting for some loss in the kettle and the fermenter, with 5 full gallons in the keg):
8 lbs. British 2-row pale malt (I used Crisp Maris Otter)
1 1/2 lbs. Brown malt (this is the essential ingredient for this beer)
1 1/4 lbs. 40L crystal malt
4 oz. Chocolate malt
1 1/2 oz. Fuggles hops, 4.5% aa at 60 minutes
1/2 oz. Fuggles hops, 4.5% aa at 15 minutes
Starting gravity is 1.056. Bittering is 30 IBUs.
Mash at 154 deg F for one hour.
I split this batch into two fermenters. I pitched Safale S04 dry yeast into one half. Into the other half I pitched some WYeast 1968 London ESB slurry I had saved from a previous batch. The S04 half took off right away. I don't know what happened, but after three days the London ESB half showed no activity, so I pitched a packet of Munton and Fison dry yeast. Then it took off within a few hours. I thought this part of the batch was going to suffer from the lengthy lag time before fermentation started, but it turned out that this was the award-winning beer. I really think that the WYeast 1968 did contribute to the final flavor and I think it's the right yeast for this recipe.
The final beer was lucious--rich caramel, slightly roasted, and with a subtle smokey flavor which really surprised me since there is no smoked malt in the recipe.
I will definitely be brewing this again.