Place wok back onto the stove. Alternatively, if you’re using a cast iron pan or sizzling plate, place it on the stove.
Heat on high heat for about 5 minutes.
Add in 1-2 tbsp of oil. Ensure bottom of wo (pan or sizzling plate is evenly coated)
Add onion. Sauté for 1 minute.
Add garlic. Sauté for another minute.
Add chilies, and peppers. Let cook for 1-2 minutes until tender.
Add crispy tofu.
Lower heat to medium high heat.
Pour in the sauce and mix until well combined.
Using your spoon, taste test the sisig.
Optional: Adjust to desired taste. (e.g. add more oyster sauce, soy sauce, calamansi, as needed). Mix once again until well combined. Let cook over for 1 minute.
Add mayonnaise. Mix until well combined.
Turn off the heat on the stove.