If you have been a PB and J fan all your life, you will absolutely adore this cinnamon roll recipe. From Refinery29, the cinnamon roll PB & J combines everyone's favorite sandwich with a beloved, seasonally appropriate dessert.
To recreate this treat at home, you will need an existing cinnamon roll that has been cut in half horizontally. Then you just add your favorite peanut butter (crunchy will work especially nicely here) and your preference of jelly flavor. This one contains grape jelly, but you could easily go with jam or a different fruit.
For bonus points, you can make your pastry from scratch using your own cinnamon roll recipe. However, simply using a store bought version is the quickest way to upgrade the sandwich.