I know the feeling.

I made a point of getting rid of all the non-allowed foods from my house - and that has paid off in spades. But I live alone and so some things are options for me that are not for others.

If the transgression was a one time event that you don't plan to repeat, then I would spend too much time trying to track down the information. Chaulk it up as a mistake and be done with it. If you just want something to put in your food totals for the day and you can't find information on hot cross buns, you might just all it a cinnamon roll and that should be close enough for your purposes.

Cheers!