Take out two pieces of bread. Then get a knife and crunchy peanut butter. Then spread the crunchy peanut butter on one piece of the bread with the knife. Get out a banana and peel it. Then get out another knife (not the one you used for the peanut butter) and slice the banana into circle pieces. And then put the banana slices on the piece of bread that has peanut butter on it. Put the other piece of bread on top. Then eat it.
Variations: This sandwich tastes good with raisins in it, honey, jam, and apple butter. (It does not taste good with pickles or mustard.)