Our Geo Quiz today took us to a north African nation, with a tradition of aging butter.
That country is Morocco.
And the ripe butter is called smen. Smen is hard to find here in the U.S. But it's a vital ingredient for Moroccan cooking.
Its flavor is layered with salt, herbs and time. Lots of time. You have to let this butter sit for about 6 weeks.
Cookbook author Paula Wolfert knows all about it.