In a medium saucepan, mix the apple cider vinegar, ketchup, white sugar, brown sugar, sea salt, hot sauce, red pepper flakes, black pepper, water, and white pepper.

Place the saucepan over medium heat. Stir the mixture until the sugars and salt are fully dissolved. Bring it just to a simmer do not boil.

Let it simmer gently for about 10 minutes to blend the flavours. Stir occasionally. Remove from heat and allow the sauce to cool. Transfer to a clean jar or bottle.