I have been in negotiations with Hasbro on this one for years but, much like that geezer who invented the internet, decided it would be extremely selfish to make money out of humanity on this one.  What you need to do is have a linking food with two on either side that would be repulsive together.  The scoring system has to remain secret.  I'll start you off with a couple.
 
mustard - honey – porridge
chocolate – peanut – (peanut) curry
 
Here we go.