I'm thinking of making chow's Apple Gallette and it calls for Calvados. I'm not willing to go out and buy something I'm only going to use once so I'm thinking of just infusing some brandy with a granny smith apple by just cutting the apple up and pouring some brandy in a jar and leaving it in a cool place. Is this safe to do or is it dangerous in any way? I know you can infuse vodka but my brandy is 38% alcohol so I'm hoping that's enough.
It isn't dangerous, but it won't give you Calvados. Most vodka is around 80 proof (40% alcohol by volume), so you don't have to worry about the alcohol content of your brandy. IMHO, given the apples already in the recipe, infusion won't bring much extra flavor to the party. Either spring for the Calvados (which keeps forever and can be used for any number of other applications, including drinking) or just use the brandy as it is.
Spring for the Calvados. Great stuff! If you don't fall in love with it, you'll have a friend that will.
You won't use Calvados only once. If you get decent Calvados, *someone* you know will love it.