Strawberry or grape jelly with smooth peanut butter may be the ... you can even make it a PB&J grilled cheese. Just butter the outside of the sandwich and toast it on the stove until melty.

The classic peanut butter and jelly sandwich might seem perfect as is, but you can easily take it a step further with this savory jam upgrade.

Froehlig, who served three years in the U.S. Navy during World War II before enrolling at Northwestern in 1946, started making and selling sandwiches — grilled peanut butter and jelly and grilled ...

A sliced peanut butter and jelly sandwich on a plate with a bowl of peanut butter, a bowl of jelly, and peanuts in the shell in the background. - Food Fantasy/Shutterstock ...