Soak your cashews in hot water for at least 45 minutes, up to over night. Drain and place into your high powered blender. Add buffalo sauce, nutritional yeast, and chicken broth. Blend for a few minutes until completely smooth. You may need to pause along the way and scrape sauce off the sides of the blender. If sauce is too thick, add 1 tbsp of water or chicken broth if too thick.
Meanwhile, heat a large skillet to medium heat. Once hot, add 1 tbsp oil and the chicken. Cook until the chicken is no longer pink, ensuring that you continue to turn each piece so all sides are cooked evenly. Sprinkle with salt and pepper and remove from heat. Keep the pan hot to add in zucchini noodles.
Spiralize your zucchini noodles, salt, and drain some of the moisture with paper towels. Add additional oil to the pan if needed, and toss in your zucchini noodles for a quick saute. Cook for 3-4 minutes or until zucchini is softened and lightly browned.
Combine the zucchini noodles, chicken, and buffalo sauce. Salt and pepper to taste. Add fresh cilantro and serve hot.