Combine the remaining ingredients into a blender. Blend until smooth, about 30 seconds.
Preheat a saucepan over medium high heat for 1 minute. Add the red pepper mixture. Stir constantly for about 4-5 minutes, scraping the sides, until the sauce is thick. Add the pasta and mix well.
Top with cilantro and more chili flakes and enjoy!
Recipe by Carrots and Flowers at https://www.carrotsandflowers.com/vegan-tom-kha-mac-n-cheese/