Bistek at Ensaladang Mangga

350 grams beef, (use sirloin cut), sliced into 1-inch cubes

2 1/2 tablespoons dark soy sauce

1 tablespoon dark soy sauce

1 tablespoon calamansi juice

2 teaspoons garlic, minced

1/2 teaspoon salt

1/2 teaspoon black pepper

200 grams indian mango, peeled

200 grams green mango, (use overripe green mango), peeled

2 tablespoons fish sauce (patis)

2 tablespoons green onion, chopped

2 tablespoons cilantro (wansoy), chopped

2 tablespoons peanuts, chopped coarsely

2 1/2 tablespoons vegetable oil

toasted garlic, for topping

rice, (steamed), to serve