Warm a large pot over medium-high heat, then add the olive oil and the finely chopped onion. Cook for 5 minutes, stirring occasionally, until the onion turns soft and glossy.
Add the grated ginger, minced garlic, and Thai red curry paste. Stir constantly for about 30 seconds until the paste darkens slightly and becomes intensely fragrant.
Create the broth and cook the noodles
Pour in the chicken or vegetable broth and the water, then add the lime juice. Drop in the rice noodles and stir well to ensure they separate and do not clump together.
Increase the heat to high and bring the pot to a boil, allowing the noodles to loosen in the broth.
Enrich, simmer, and finish fresh
Stir in the full-fat coconut milk and the shredded cooked chicken, then lower the heat to medium-low. Let the soup simmer gently for 10 minutes until the noodles are tender and the broth is unified.
Turn off the heat and stir in the torn basil, chopped cilantro, and scallions. Season with salt and pepper to taste and serve immediately.
Notes
Storage Tip: If you are not eating the entire pot at once, store the cooked rice noodles in a separate container so they do not absorb all the broth and turn mushy.Kitchen Hack: Freeze your fresh ginger before grating. This makes it much easier to grate and ensures the fibers melt into the soup rather than remaining as chewy bits.Flavor Balance: If the soup tastes slightly flat, add a tiny pinch of salt or an extra squeeze of lime. This cuts through the richness of the coconut milk and brightens the curry notes.Nutrition information is estimated based on common ingredients and serving sizes and may vary.