2 Prep sauce
In a bowl, combine a pinch of chilli flakes (spicy!), the soy sauce, sweet soy sauce, tamarind paste, sesame oil, fish sauce, brown sugar and the juice of half of the limes. Slice the remaining limes into wedges. Add the eggs to a second bowl and beat them lightly. Add the rice noodles to a third, larger bowl and cover them with boiling water. Leave to soak for 5 min.