A little update...I went to
Disneyland tonight and stopped by the Blue Bayou to ask about your dessert take-out question. The CM at the podium giggled at first and said nobody had ever asked her that, but she was 99% sure the answer was "no." She politely referred me to the "dine line" and said they could give me a definite answer. I called and they confirmed that BB does not do take out of any kind, even dessert. Good luck on your creme brulee quest! You might want to check Ralph Brennan's Jazz Kitchen (in DTD). I believe they have a creme brulee sampler (Grand Marnier, cafe au lait, and vanilla ginger), but I've never tried it.