Brace yourself, McRib fans, according to The Huffington Post, a McDonald’s memo that revealed the timing for the next appearance of the famed McDonald’s sandwich. The McRib should reappear the second half of December 2012. The ephemeral but extremely popular limited-time offering was originally slated for October 22 through November 11 but the timing was moved in hopes to strength a slower sales period. Last year, the McRib was available from October 24 through November 14.The McRib has some serious fans, prompting McRib locator websites and detailed discussions of its ingredients.