So I’m planning on making an “imperial” oatmeal raisin stout. This beer will be to honor my dad. My idea was to use two of his favorite whiskeys. One is a bourbon and one is balvine double wood. I plan on aging them for roughly 2months in addition to the raisins. Will the bourbon and scotch blend well?
If I were you I would simply try them and find out. But I really don’t see much of an issue. Just don’t overdo it.
Make the beer then do some bench trials to dial in the percentages of spirits.
I’m a big fan of Balvenie myself. Another method you could use to find the flavor you’re looking for is just blend the whiskies. Do some small (or not so small) samples, blending them together in different proportions, and see if you find what you’re looking for. Granted, flavors will be a little different when you actually use it with spirals in a beer. But it should give you an idea as to what kind of split you want to do.
You’ll also get to do some whisk(e)y sampling. 