Sat, 08/17/2024 - 09:17 Tech Insider Travel I tried the fried chicken sandwich at Palace Diner in Biddeford, Maine, and understood why it's known to sell out early.Erin McDowell/Business Insider Tags Food, Travel, Maine, portland-maine, fried-chicken-sandwich, chicken-sandwich, diner, diners Source I tried a famous fried chicken sandwich at Maine's oldest diner. It was worth t…