Prepare black glutinous rice according to package directions, except add a pinch of salt and 1/2 teaspoon sugar when it first comes to a boil.
Using your hands, break up the Jasmine rice as best you can to separate the grains.
In a small bowl, combine fish sauce, lime juice and remaining 2 teaspoons sugar. Stir to mix until sugar has dissolve completely. Set aside.
Heat a wok or skillet over high heat.
When hot, add oil.
When the oil is hot and shimmering, add onion. Sauté until translucent and fragrant.
Add lemongrass. Stir for 5 seconds, just to release the flavor.
Add Jasmine rice. Cook, stirring, separating the grains by pressing with the back of a spatula, just until coated with the oil.
Add prepared black rice and remaining teaspoon of salt. Stir to combine.
Sprinkle in fish sauce/lime juice mixture. Stir together briefly.
Add peanuts and shrimp. Cook, stirring until piping hot.
Quickly stir in basil, scallion and cilantro and remove from heat.
Serve hot.