How do chefs make the best sauce?

https://www.quora.com/unanswered/How-do-you-get-started-Why-should-you-make-your-own-barbeque-sauce

https://kellyjenner7543.tumblr.com/post/625665225025355776/my-god-best-spicy-foods-and-heartburn-hot-sauce

https://imgur.com/gallery/67h2gnA

https://www.flickr.com/photos/187111642@N07/50193415968/in/dateposted-public/