Slice the bell peppers into halves and remove the seeds and white. Rub them with olive oil and season with salt and pepper. Air fry them until slightly charred.
Transfer the roasted peppers to a food processor along with the rest of the ingredients.
Blend until you get a slightly chunky sauce. Taste and adjust seasonings.
Transfer to a bowl and use immediately or store for later.
If you don't have enough red bell pepper or just want to bulk up the sauce, consider using a tomato or two. I like to add my Air Fryer roasted tomatoes into the mix for some extra tangy and smoky flavor.
It's a good idea to use a small food processor or blender to make this sauce. A larger device may not chop up the bell peppers properly.