Start by warming a bit of oil in a medium pot over medium heat. Once it’s hot, add the finely chopped onion and garlic. Let them cook slowly until they’re soft and smell great, which should take around five minutes.
When the onions and garlic are ready, add the red chili paste along with the cumin. Give everything a good stir and let the spices cook for a minute or two so they release their full flavor.
Next, pour in the crushed tomatoes, the tomato paste, and whatever dip or spread you’re using. Stir until everything comes together into a thick, even mixture.
Add a splash of red wine vinegar, then bring the sauce to a gentle simmer. Lower the heat and let it cook for about 25 to 30 minutes, stirring now and then, until it becomes thicker and the flavors develop.
When the sauce is done, mix in the chopped parsley. Taste it and make any adjustments you like. Let it cool a bit before you use it or store it.