Next time you make a tuna sandwich, remember this tip. Fish sauce might just be the ingredient you've been searching for to make this lunchtime classic truly special.

Top tuna with cheese, packing it on generously, and slide sandwiches under broiler. Broil until cheese melts and bubbles, 4-5 minutes. Remove tuna melts from broiler and serve immediately.

I think ordering a tuna sub is always going to be a bit of a risk. Will the fish taste fresh ... overfilled sandwich at the chain, though, I'm afraid it's the norm. You may get a lot of bang ...

Whether you are craving something savoury, light, or sweet, these three quick recipes — Dim Alur Chop, Tuna Salad Sandwich ... parsley, and fish sauce or anchovy. Mix until well incorporated ...