the bread cooking in the sand

The night has fallen on the desert. After his promenade with Elbeït the camel, Doudou has met Ahmed who promissed to teach him how to cook bread in the sand, like the camel-drivers do.
“ First of all says Ahmed, you must prepare the dough by mixing flour, yeast, and water.
- Of course says Doudou, just like you do for normal bread… ”