Multisite global menu question


I am new to multisite and I was wondering if any members have experience building a global menu for a multisite setup. The requirement is to have xyz replications of one basic site. Each site inside the mutlisites that I would create I would want to use a menu that would show up on all child sites. I'd like to be able to manage this menu in one location and have it replicated throughout all of the multisites. I'm also using Genesis Framework if that helps.

Thanks in advance!