Without yeast and without yeast: brown and fragrant challah for those in a hurry. Chala Zariza for Shabbat/Sugat, Afik Gabai.
Even if you remembered it at the last minute, that doesn't mean you have to give up homemade challah. Oren Luxenburg, host of the "talking is not fattening" podcast, teaches how to make wonderful brown challah from self-raising flour and yogurt. You will leave the yeast and the fermentation for another time.