There are few meals more satisfying than a peanut butter and jelly sandwich. So leave it to J.M. Smucker Company, parent company of Jif Peanut Butter and Smucker's fruit spreads made from every fruit imaginable, to come up with "Uncrustables," the ultimate "to go" sandwich. The frozen, pre-made sandwich, filled with peanut butter and jelly, crust removed and edges crimped shut, has been a favorite snack for millions of Americans since its debut in 1996. The popularity and convenience of the sandwich app ...