Bangus sisig is a savory, tangy, and creamy Filipino milkfish dish, featuring flaked crispy fried fish, onions, chili peppers, and citrus (calamansi). It tastes rich and nutty, often incorporating mayonnaise or butter for creaminess, and is commonly served on a sizzling plate to create crispy, caramelized edges. 
This video shows how to make a classic, savory bangus sisig: