Uncrustables is a $1 billion brand. Now everyone wants in

By Jordan Valinsky, CNN New York (CNN) — One of America’s oldest sandwiches is the newest battleground in the freezer aisle. The humble peanut butter and jelly has been a staple in kitchens for decades, beloved by parents looking to fix a quick meal for their kids. Then the crustless, pre-packaged Uncrustables rolled out in