Old recipe prawn soup base that is more than 20 years. Stall formerly at block 915 Tampines Street 81, run by mother and son who used to sell lor mee, wanton mee, chicken feet noodles, laksa etc. Love the soup base that is not very thick and not much of MSG flavour. Very generous female seller, when asking for more bean sprouts. Knowing her for 10 years, she even took out fresh servings of crispy lard from big container that was fried a day before. This bowl of pig's tail seems endless. I dip it with dark soya sauce with cut chilli. Ask for the dark soya sauce as it's not available except upon request. $4 / $5 is very worth it!