Haifagirl and Berlin:
With regards to totally raw cholent. This is far from a simple solution nowadays. The reason is becase the food most be totally raw at the time that Shabbos commences. The question arises when Shabbos really commences – at the Shkia or at the Tsais?
Although we each may take the position of respective Rishonim when it comes to davening, etc., nevertheless, even those who take the position that nightfall begins at the Tsais (Rabbeinu Tam), such as us Chassidim, we still begin Shabbos at the Shkia. The food therefore has to be of the sort which takes more than 72 minutes to begin to cook K’Maachal Ben Drosoa, so that the food will still remain totally raw when the Tsais arrives.
I am persoanlly not aware of such a food item. Generally after an hour all foods are cooked at least nominally.