Sweet Potato, Shrimp, and Lemongrass Dumplings

Soft and somewhat elastic on the outside, this Malaysian morsel contains a spritely filling of dried shrimp, shallot, ginger, lemongrass, chile, and grated coconut. After I tasted my first one in Kuala Lumpur, I quickly learned to say “choo-choo ba-dah” like a local so that I could buy them from street vendors whenever possible. Use the yellow-fleshed sweet potatoes with pale skin because this variety has a lower moisture content and will yield manageable dough that is not too sticky. For the dough, I have provided a range so that you can make dainty or moderate-size dumplings. To determine the amount of flour, use the original weight of the sweet potato. If it weighs 3/4 pound, use 3/4 cup (3 3/4 ounces) of flour. A 1-pound potato requires 1 cup (5 ounces) of flour. Whole unpeeled shrimp traditionally crown the dumpling, but modern versions sold by vendors often lack them. If you opt for the charming old-fashioned topping, purchase shell-on white shrimp (not tiger shrimp) which have edible, thin shells; they are sold at Asian markets.