fwiw, byo has a pistachio pale ale recipe - but it's based on roasted whole shelled nuts...
Pistachio Pale Ale
(5 gallons/19 L, all-grain)
OG = 1.052 FG = 1.011
IBU = 46 SRM = 6 ABV = 5.3%
Ingredients
5.0 lbs. (2.3 kg) 2-row pale malt
4.25 lbs. (1.9 kg) British pale ale malt
1.0 lb. (0.45...