Also known as Arrogant Double Bastard Ale - Whiskey Barrel
Commercial description
2012 Double Bastard Ale aged in Bourbon Barrels Arrogant Bastard Ale’s (really) big brother, this dark amber ale is brewed with a huge malt bill and a belligerent amount of hops. It’s a heavy, bitter beast of a beer and absolutely not for the timid.
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Arrogant Double Bastard Ale - Whiskey Barrel

The brewer markets this same or near-same product by more than one names. This can be the result of a brewer distributing this beer under different names in different countries, or the brewer simply changing the name, but not the recipe at different points in time.