seasoned

adjective2

1. •
   Of a food, often a liquid: containing seasonings

   • Pan-simmer baked seitan cutlets in Basic Broth (page 20) or other seasoned stock for 15 minutes. — 1994
2. •
   Experienced, especially in terms of a profession or a hobby

   • While you do these exercises, typing each one in, you will make mistakes. It’s inevitable; even seasoned programmers make a few. — 2013