Sizzing Rice Soup?
if you order one of the casseroles at Hong Kong Eatery (such as diced chicken with tofu and salted fish) which are served in a very hot pot with rice, if they've cooked it long enough, the rice on the bottom/sides of the pot will be nicely crispy/crunchy.
Hong Kong Eatery
79 Harrison Ave, Boston, MA 02111
only places i know of that do sizzling rice (but with shrimp, not as a soup) are Uncle Cheungs in Framingham and Shanghai Gate (if they still do it). you might be able to order the sizzling rice and order soup and put them together!
204 Harvard Ave, Allston, MA 02134
Uncle Cheung's Restaurant
266 Worcester Rd, Framingham, MA 01702