It’s safe to say that the peanut butter and jelly sandwich is the best sandwich ever created since the dawn of man. If you can direct me to a better sandwich, then, by all means, try and expect failure. Now, because the peanut butter and jelly sandwich is such a delicacy, we should at least have an easy way to get the brown stuff on our bread. For too long us humans have been dipping a knife into a jar…