Prepare the sauce by mixing the tamarind paste, brown sugar, soy sauce, oyster sauce, fish sauce and mix well and keep aside.
Check the sweet and sour balance and adjust accordingly if its too sweet add more tamarind water or if its too sour add more brown sugar.
Soak rice noodles in warm (not boiling) water for 25–30 minutes until flexible but not mushy. Drain and set aside.Fun Tip: Don’t over-soak! You’ll finish cooking them in the sauce. Heat 1 tbsp oil in a wok or skillet. Add sliced chicken, season lightly with salt, and stir-fry until just cooked through (3–4 mins). Remove and keep warm.
In a wok or pan, add sesame oil, minced garlic, chopped onions and saute for 2 minutes.
Add the minced red chilies and chicken strips and stir fry them till 3 minutes.
Add the prepared sauce and cook in slow flame for 10 minutes until the sauce gets thickened and chicken is cooked.
Add the blanched rice noodles and stir it nicely and toss it.
Finally add the bean sprouts and toss it and switch off the flame.
Add the cooked pad thai in a bowl or plate and garnish by adding roasted peanuts, lemon wedges on the side and chives on top.