First, gather all of your ingredients. You'll need two slices of bread, peanut butter, and jelly.

You'll also need three knives and a plate. If you're messy like me, you may also need a napkin.

Then, place both pieces of bread flat on the plate.

Next, insert one knife into the jar of peanut butter and remove it with peanut butter on it. You may need to do this for the second slice of bread as well. 

Spread the peanut butter evenly on the bread. I like to put it on both, but some people put it on only one piece of bread. 

Then, put that knife off to the side and grab one of your other clean knives. 

Insert the knife into the jar of jelly. Remove the knife from the jar with jelly on the knife. You may need to repeat this step for each piece of bread.