Place a medium (2 qt.) pot over medium heat. Add the laksa paste and brown sugar, and cook for 1 minute, stirring frequently.
Add the water, coconut milk, and the seasoning packets from the instant noodles. Bring to a simmer.
Add the instant noodles, and cook for just 2 minutes, until softened but still al dente.
Divide the noodles and soup between two bowls, and top each with cilantro, scallions, chili (if using), and a lime wedge. Serve immediately.
