I have sometimes heard people suggest cooking long meals overnight while camping. For example, the book "Gastronomie en plein air" written by Odile Dumais, talks about cooking pea soup or baked beans over a fire in a pit dug in the sand.
Historical writings about the French Canadian voyageurs describe their meal of pea soup cooked overnight over the fire.
Odile Dumais has guided remote expeditions over the entire Canada and Greenland for more than 50 years. She is clearly aware of bears.
Does anyone have experience with this type of cooking method? From my experience with bears, this seams like the best way to attract them.