FOOD NEWS 🚨: @frenchs debuts limited-edition Mustard Donuts celebrating National Mustard Day on August 6. Select Dough Doughnuts locations will be giving away a free Mustard Donut while supplies last. -Flatiron (14 W 19th St.) -Brooklyn (646 Vanderbilt Ave.) -Astoria (21-70 31st St.) -Rockefeller Center (10 Rockefeller Center) -Urbanspace Vanderbilt (230 Park Ave.) Smorgasburg (90 Kent Ave.)