I wonder what they use for their "only" ale yeast - My guess would be something from Fermentis, maybe even us-05 .... unless it's a custom strain, of course.
This is very rough, and just based off of their website info. Try tweaking this:
Nut Cracker Ale
Spice, Herb, or Vegetable Beer
Type: All Grain
Batch Size: 5.00 gal
Brewer: Boulevard
8.75 lb Pale Malt (2 Row) US (2.0 SRM)
1.00 lb Munich Malt (9.0 SRM)
1.00 lb White Wheat Malt (2.4 SRM)
0.50 lb Aromatic Malt (26.0 SRM)
0.25 lb Special B Malt (180.0 SRM)
0.50 oz Magnum [13.50 %] (60 min)
0.50 oz Cascade [5.50 %] (20 min)
0.50 oz Chinook (Fresh leaf) [13.00 %] (5 min)
2.0 oz (by weight) Molasses (80.0 SRM) Boil 5 Minutes
0.10 oz UNKNOWN SPICES (Boil 5.0 min)
Est Original Gravity: 1.064 SG (Website sez 16deg Plato, which is "roughly" 1.064)
Est Final Gravity: 1.016 SG
Estimated Alcohol by Vol: 6.17 % (Website sez 6.1% by vol)
Bitterness: 31.3 IBU (Website sez 31 IBU)
What do ya think? Am I close? I know the color swatch looks just like the couple of bottles I had last month.