Skirt Steak @ Libertad By Penny Pollack November 17, 2011, 3:48 pm Underneath a heap of yuca frites & a smear of chimichurri, the chef pulled off a juicy, medium skirt steak @Libertad7931. LIBERTAD: 7931 LINCOLN, SKOKIE; 847-674-8100 Tags: What Penny Eats