Start the day in Jaisalmer with a traditional breakfast from one of the very popular vendors just outside the first fort gate in Gopa Chowk. (So popular, that it pays to pre-order.)
Dal Makarni and Pakwan and Dal Chakori, especially ordered from the most popular breakfast stalls in town.
If it the right time of year, the mangoes are amazing. Also sold easily in Gopa Chowk.
A great place for a sweet stop is Dhanraj Ranmal Bhatia.