In a saucepan, combine the olive oil, peppers, crushed red pepper, salt, and black pepper. Bring the liquid up to a boil and reduce the heat. Simmer the sauce for 4 minutes and remove from the heat. Stir in the garlic. With a hand held mixer, puree the sauce until smooth. At this point, allow the sauce to sit for 1 week under refrigeration before serving. Stir in the cilantro and kosher salt.