½ teaspoon sambal oelek or Sriracha, plus more for serving
¼ cup chopped cilantro
¼ cup thinly sliced scallions
Directions
In a large pot, heat the canola oil. Add the shallot and garlic and cook over medium-high heat until lightly browned, about 1 minute. Season with 1/2 teaspoon salt.
Add the pumpkin puree to the pot and whisk to combine with the shallots and garlic. Cook the mixture over medium-high heat, whisking, until the pumpkin puree begins to bubble around the edges, about 2 minutes. Whisk in the coconut milk until the mixture is smooth; lower the heat to medium and simmer for 5 minutes.
Add the lime juice, fish sauce, sambal oelek and the remaining 1 teaspoon of salt and stir. Simmer for 5 minutes.
Divide the soup among 4 cups or bowls. Garnish with the cilantro, scallions and crushed rice crackers, if using, and serve immediately.