Ingredients:

sliced Malasugi (blue marlin)
salt and pepper, to taste
green chilis, for garnishing
toasted garlic
sliced onions
1 tsp oil
 
For the sauce:

2 tsp calamansi juice
2 tbsp soy sauce 
1 tbsp sugar
salt and pepper, to taste
sliced onions
3/4 cup of water
1 tsp cornstarch dissolved in 1/4 cup of water 

How to prepare:

1. Pat some salt and pepper onto each side of sliced malasugi.
2. In a non-stick pan, heat oil. pan-fry the fish. Cook and brown each side for about 3-5 minutes. Set aside.
3. In the same pan, saute onions with a little oil, then add soy sauce, calamansi juice, brown sugar and water. Season with salt and pepper. Simmer uncovered for 3-5 minutes.
4. Add dissolved cornstarch to thicken the sauce. Turn off heat.
5. In a heated sizzling plate, place the malasugi, pour sauce, then add chilis and toasted garlic for garnishing.