Four McDonald's restaurants in the South Bay are testing out a new sandwich on their menu. It's called the McDonald’s Crab Sandwich. McDonald’s wanted to continue experimenting with local Bay Area flavors just like the garlic fries they introduced back in May. The Crab Sandwich will have snow crab meat on a sliced sourdough bun. When asked why McDonald's is using snow crab and not local Dungeness, McDonald's said: "The McDonald’s sourcing team had to weigh a variety of different factors when they approached how and where they were sourcing crab." The sandwich also comes with celery and seasoned mayo...