Cook the pasta in 3-4 l boiling salted water (1 teaspoon salt per litre) according to the instructions on the packet. Peel and chop the onion and garlic, fry in oil. Finely chop the cashews. Add starch, 300 ml water and broth to the onion mix, puree finely.
Simmer while stirring until you have a creamy sauce. Season with salt, pepper, chilli and cumin.
Wash and chop the parsley. Drain the pasta, collect some pasta water. Mix noodles and sauce, dilute if necessary. Sprinkle parsley and crumbled chips over it.