Turning its attention to the "fried chicken sandwich wars," Yum! Brands (NYSE: YUM) subsidiary KFC will start testing an upgraded chicken sandwich today in Orlando, Florida. The bigger, better chicken offering costs $3.99 and will be available until June 21, or until the last of the trial run is sold. The opening shot of the war was fired last August, when Restaurant Brands International (NYSE: QSR) brand Popeyes Louisiana Kitchen responded to a promotional tweet from then market leader Chick-Fil-A with a two-word challenge: "...y'all good?" Image source: Getty Images. This kicked off a scramble in which most major U.S. fast food chains competed to claim chicken sandwich supremacy. The resulting competition temporarily depleted America's supply of small chickens, whose breast meat is ideally sized to fit into a typical chicken sandwich with minimal preparation such as trimming. The coronavirus pandemic put a damper on the chicken sandwich wars, which echoed Americans' steadily increasing demand for chicken. Now, the war may be going hot again with KFC's effort to improve its position relative to its rivals. The new chicken item features a 20% larger filet, according to KFC, along with a bun and condiments similar to Popeyes' offerings. KFC's Chief Marketing Officer Andrea Zahumensky says the chain's food innovation team "left no stone unturned." "They tested pickles with eight variations of thickness and brines before we landed on our pickle," she said. "And for our perfect brioche bun, we collaborated with six different bakeries and tested more than ten formula revisions." 10 stocks we like better than Yum! BrandsWhen investing geniuses David and Tom Gardner have a stock tip, it can pay to listen. After all, the newsletter they have run for over a decade, Motley Fool Stock Advisor, has tripled the market.* David and Tom just revealed what they believe are the ten best stocks for investors to buy right now... and Yum! Brands wasn't one of them! That's right -- they think these 10 stocks are even better buys. See the 10 stocks *Stock Advisor returns as of April 16, 2020 Rhian Hunt has no position in any of the stocks mentioned. The Motley Fool has no position in any of the stocks mentioned. The Motley Fool has a disclosure policy.Source