Make sure the cooked prawns are peeled and deveined. Leave the tail on.

In a medium non stick pan add the finely chopped garlic, grated ginger and chilli flakes along with both oils. Cook over medium heat until the garlic is nicely golden.

Add the water, soy sauce, sriracha and brown sugar. Cook over medium heat until the sauce thickens to resemble a syrup consistency then add the squeeze of lime juice.

Add the cooked prawns and cook over medium heat for 2mins to heat through and for the sauce to further reduce and thicken and coat the prawns. 

Remove from pan and serve into bowls. Sprinkle with sesame seeds and sliced red chilli.

Serve with rice or Asian greens.