
Recently, I met a guy at a party and of course the conversation turned to beer within minutes. He talked about Urban Chestnut Pilgrim 7, how delicious it was (I agreed) and what a bummer it is they no longer brew it (I agreed.) His wife ratted out how sad he was when his horde stash ran out. When I said I could probably help him brew something very similar for himself, he accepted. He's never brewed before, but he said he needs a new hobby.

Thankfully, Urban Chestnut revealed their grains and hops online (since removed when they retired the beer.) In terms of relative percentages, times, temperatures, and techniques, I filled-in the blanks partly based on what I know about their other brews and partly based on guesswork.
*see update belowBrewer's description:
Harvesters rejoice! In celebration of the seasons of "Reap" and "Thanks" we introduce this bounty for your table - a sessionable ale brewed with seven (that’s right) seven different grains: Oats, Sorghum, Wheat, Barley, Rice, Corn, and Rye. The result...a tasty "cornucopia of flavors" ale.
Malts: Pilsner, Wheat, Munich, Caramunich, Rye, Spelt, Oats, Sorghum, Emmer*.
Hops: Cascade, Centennial, Chinook
So here goes:My Ratebeer review, in case you're interested:
11/14/2013 Tasted on tap at the preview tour of their new brewery/bierhall. It poured a hazy, light orange-ish amber colour with thick white foam, long-lasting with lace. Strong American hoppy aromas: orange peel and grapefruit, woodsy, earthy, resiny, faint fruit and pepper. Grainbill was light and crisp, but layers of complexity. Some residual malt sweetness, crusty French bread, crackers, honey. Smooth and creamy mouthfeel. Light body, average carbonation, perfect bittersweet balance, lingering hoppy aftertastes. Great stuff. Along the lines of other trendy "Session IPAs" such as Founders All Day IPA and Boulevard Single Wide but with a more nuanced grainy mouthfeel than most.
SEYMOUR URBAN CHESTNUT PILGRIM 7 CLONE RECIPE
5.5 US gallons = 4.6 Imperial gallons = 20.8 liters
GRAINBILL
Source as many German malts as possible. Get the unmalted grains from a health food store or wherever.
60% = 5.56 lbs = 2522 g, Pilsener Malt
10% = .93 lb = 422 g, Wheat Malt
10% = .93 lb = 422 g, Munich Malt
5% = .46 lb = 209 g, CaraMunich Malt
3% = .28 lb = 127 g, Rye
3% = .28 lb = 127 g, Oats
3% = .28 lb = 127 g, Sorghum
3% = .28 lb = 127 g, Spelt
3% = .28 lb = 127 g, Emmer
TOTAL: 9.27 lbs = 4.2 kg
MASH at 148°F/64°C for 90 min
Raise temp to 171°F/77°C, then VORLAUF, then SPARGE to collect 7 US gal/5.8 Imperial gal/26.5 L preboil.
BOIL hard for 60-90 min, evaporating down to target volume.
HOPS
I don't know exactly which hops are added when, but since all three of these hop varieties are multi-purpose (bittering/flavour/aroma), I recommend the somewhat unorthodox method of stirring together equal .8 oz of each ahead to time. It's not so different from Urban Chestnut's approach to single hop trials; and this is the same idea behind trendy hop blends like Falconer's Flight, Seven Cs, Zythos, etc.
Use the resulting blend as follows (alpha acid percentage averages to ≈ 9.9):
.7 oz = 20 g, Cascade/Centennial/Chinook blend, 60 minutes remaining
.7 oz = 20 g, Cascade/Centennial/Chinook blend, 15 minutes remaining
1 oz = 28 g, Cascade/Centennial/Chinook blend, dry hops added 7-10 days before bottling
TOTAL: 2.4 oz = 68 g
YEAST
"American Ale", most likely the Anchor Liberty strain, which is possibly from Genesee originally, available as Wyeast 1272 and White Labs WLP051. Pitch a fresh, healthy starter. Ferment low and slow.
STATS (assuming ≈ 75% mash efficiency, 78% apparent attenuation)
OG: 1046
FG: 1010
ABV: 4.6%
IBU: 35
Colour: medium orange amber