I used to dip apple slices in ketchup.
I like eating chocolate cake while drinking orange juice.
I've mixed chocolate syrup and mustard together to dip pretzel sticks in.
There have been, and are, countless other things, none of which I can remember. I've never understood the point of always following certain food combinations, and avoiding others. If I want to eat something, I'll eat it. If something else sounds good at the same time, I'll eat that too. **** normalities.