Add salt, pepper, and calamansi juice to the chicken. Marinade for at least an hour.

For the coating, combine the flour, cornstach, salt, pepper, paprika and garlic powder in a bowl. Mix. well.

Coat the chicken with the coating. Remove excess.

Put oil in frying pan on medium heat. Cook the chicken until lightly brown and remove from oil. Let rest for at least 15 minutes.

Heat the oil and hight heat and fry the chicken again for crispiness. Remove from oil when golden brown.

In a separate pan, melt the butter. Saute the garlic in the butter.

Add the ketchup, hot sauce, brown sugar and soy sauce. Mix well. Cook until thick.

Put the chicken into the sauce, simmer for a few minutes and transfer into serving bowl.