For weeks, a debate over where to get the best chicken sandwich has waged between Popeyes, Chick-fil-A and the chicken-eating public at large. But KFC , another chicken giant with a global reach, is working on its own agenda: a plant-based “chicken” that proved so popular in a sales test that it sold out in a single day.

“It’s confusing, but it’s also delicious,” read a tweet from KFC on Monday announcing the sale of Beyond Fried Chicken, created with the help of the company Beyond Meat, at a single location in Atlanta. In about five hours on Tuesday, a KFC representative said, the restaurant sold as many plant-based boneless wings and nuggets as it would sell of its popular popcorn chicken in an entire week. (A “Kentucky Fried Miracle,” the company declared.)

The representative said the company started “talking with various plant-based suppliers this spring” and “decided to launch this very initial, limited test in Atlanta to gauge interest in plant-based options from KFC customers.”

Is a national rollout imminent? Not quite. The company now plans to evaluate the results of Tuesday’s test, and customer feedback, to determine what comes next, the representative said.