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Private Notes
This special episode from 2007 certainly exists and aired - it's referenced in several articles and reference materials about the show. This database contributor, however, can't find any specifics about what foods the episode was about.
The second Dotch Cooking Show special to air after the "final" episode in 2006.
Note: While I know this special is from 2012, I can't find the specific air date. This one is a total guess.