01 - Bring a large pot of generously salted water to a rolling boil. Cook the chosen pasta until al dente, following package directions. Drain thoroughly, reserving approximately 1/4 cup of the starchy pasta water for later use.
02 - While the pasta is cooking, heat the vegetable oil in a large skillet over medium heat. Add the finely chopped onion and sauté until it becomes translucent, approximately 3 minutes. Introduce the minced garlic and grated ginger, cooking for an additional minute until fragrant.
03 - Stir in the Thai red curry paste. Cook for 2 minutes, stirring continuously, to fully develop its rich flavors and aromas.
04 - Add the sliced red bell pepper and trimmed snap peas to the skillet. Stir-fry for 2 minutes. Pour in the full-fat coconut milk, soy sauce, and brown sugar. Bring to a gentle simmer and cook for 5 minutes, or until the vegetables are crisp-tender.
05 - Add the cooked pasta directly into the skillet with the curry sauce. Toss to ensure the pasta is thoroughly coated. If the sauce appears too thick, incorporate a little of the reserved pasta water to achieve a silky consistency. Finish by squeezing in the fresh lime juice and adjusting seasonings as needed.
06 - In a tall, narrow container, combine the chilled full-fat coconut milk, soy lecithin powder (if using), and a pinch of salt. Utilize an immersion blender or milk frother to vigorously whip the mixture until a light, airy foam forms.
07 - Spoon the finished pasta into shallow serving bowls. Generously top each portion with the prepared coconut milk foam. Garnish with fresh coriander leaves before serving immediately.