Cheesecake and chocolate are definite triggers. I've been stable for a while now and still cannot handle much dairy at all. However lately after a very safe dinner I've been able to have a bite or two of cheesecake or chocolate. The total amount is probably 1-2tbsp.
If you are not stable then triggers are a no-no. Once you are stable you can play around with seeing how much you can tolerate, if any. Even though I am stable, if I'm having a day where my stomach feels a bit unsettled, I will make sure to not have any triggers.
There are some recipes for cheesecakes and chocolate cakes that are safe. I make these when I actually want to indulge in a full desert and not just one bite.