Place pork belly in a bowl and seasoned it with salt and pepper.
In medium heat, add the oil in a pan then add the meat when the oil is heated, turning the meat occasionally until the pork turned light brown.
Add the onion and garlic and stir for 2-3 minutes.
Add soy sauce and vinegar and stir for a minute then add bay leaves and water and mix together.
Put the cover and lower the heat to low and simmer for about 30-40 minutes. After 20 minutes add the cola, salth and pepper.( option if you have cooker : add cola then pressure cook for 10 mins).
Uncovered the pan until all the liquids evaporated. The finishing time will depend on what version do you want if it's more with sauce or a little dry,
For Keto meal you can serve it with boiled eggs, cauliflower rice and steamed keto approved vegetables.
Serve while it's hot.Enjoy!