Heat a pot and pour in cooking oil.
When the oil becomes hot, deep-fry the dried anchovies (dilis) for 2 to 3 minutes or until the color turns light brown.
Turn off the heat and remove the fried anchovies from the cooking pot. Set aside.
Combine fried anchovies, ketchup, and hot chili sauce, then mix well.
Add brown sugar and mix until all the anchovies are coated.
Heat the same pot with the remaining cooking oil and fry the coated anchovies for 2 minutes or until the texture becomes crunchy but not burnt.
Remove the anchovies and transfer to a serving plate.
Serve.