Heat the Oil: Heat olive oil in a saucepan over medium heat for 1 minute.
Toast the Spices: Whisk in chili powder, cumin, garlic powder, and paprika for 30 seconds.
Add Tomato Paste: Add tomato paste and mix until it blends with the spices and oil.
Pour in Broth: Slowly pour in broth while whisking continuously to avoid lumps forming.
Season the Sauce: Add onion powder, salt, pepper, and vinegar to the sauce and stir well.
Simmer and ThickenBring to a simmer and cook uncovered for 8-10 minutes until slightly thickened.
Adjust Flavor: Taste and adjust seasoning; add keto sweetener if needed for flavour balance.
Rest the Sauce: Let the sauce rest for 5 minutes before serving or storing in a jar.