Serious Eats: Talk

Ideas for homemade nut butters?

I am privileged to borrow my out-of-town friend's Cuisinart. I am fantasizing about whipping up a multitude of nut butters this weekend.

Does anyone have any ideas for unique nut butters? Either spices or interesting combination?
In addition, how long can I expect them to last in the fridge?

Thank you!

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