Chili Peppers
There aren’t that many recipes that require Chili Peppers, and to be honest, there are so many different recipes that a budding Chef can EASILY level past the range where Chili Peppers are a level-appropriate ingredient without needing to use them. In fact, I believe there’s a Chef guide out there that takes you from 0 – 400 without using any Chili Peppers at all.
That said, I do agree with you that Chili Peppers are abnormally hard to get. Despite playing from launch day and bringing 5 different characters through the starter Charr areas, I only have 30 or so Chili Peppers. (In comparison, I have over a stack of Vanilla Beans!) I think Chili Peppers need a tweak similar to what Vanilla Beans got, where they drop in quantities of 3 – 5 instead of 1 – 2 like they do now.