Soak noodles in boiling hot water for 10-12 minutes until they are tender or cook them according to the package instructions.
Drain the water and toss the noodles with a few drops of oil. Set aside.
Make The Pad Thai Sauce
In a saucepan, stir together vegetable stock, soy sauce, brown sugar, tamarind paste, chili paste, salt, and water.
Bring the mixture to a boil over high heat.
Reduce the heat to low and cook for 3-4 minutes stirring a few times in between.
Remove the pan from heat and set it aside.
Make The Noodles
Heat sesame oil in a wok over high heat.
Once the oil is hot, add garlic and red chilies and saute for 4-5 seconds.
Add onions, red bell pepper, yellow bell pepper, and bean sprouts, and saute for a minute.
Now add the cooked noodles and the sauce to the wok and toss well to coat the noodles. Cook for a minute and then switch off the heat.
The noodles will be watery at this stage but they will soak up the sauce in another 3-4 minutes and also become darker in color.
Transfer the noodles to the serving bowls and top with crushed roasted peanuts, cilantro, and lime wedges. Serve hot.
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Notes
These rice noodles are delicate and get overcooked and mushy soon, so keep checking them.The best way to cook them is by pouring boiling water over the noodles and letting the noodles cook in the heat of the water. If you feel they are not cooked perfectly, keep them on heat and cook until they are just cooked (Al Dente).If you like the noodles saucy, double the sauce ingredients.