Not good value for the price
I have bought these on a number of times, unless you cover them with a strong sauce they taste of nothing, look like prawns but do not taste like prawns,.
Tasteless shrunken prawns
Tasteless - why did you buy from Vietnam? Those from Thailand and Malaysia were far superior in taste and final appearance after cooking.
Better than cooked prawns
Good size raw prawns at a reasonable price. Much better than cooked prawns if you are planning to put them in a hot dish. use in Goan Prawn curry and in risottos, They cook quickly so as soon as they are pink I take the pan off the heat and cut one through just to make sure they are cooked through. Like all prawns if you overcook them they are tough and tasteless.