So I am now getting to the point where I can consistently make a good loaf of sourdough with just flour water salt and starter. I absolutely LOVE this simple bread, but I'm looking to branch out and incorporate other ingredients into my loaves (stuff like fats, nuts, oats, fruit, etc.) I see so many delicious recipes online, I'm just not sure where to start. Anyone had any suggestions for good "beginner" additions?
Walnuts & whole wheat is a classic and one of my favorites.
Hamelman's 5-grain levain is delicious and is well-documented, having been a community bake: http://www.thefreshloaf.com/node/59038/community-bake-hamelmans-fivegrain-levain
Oat porridge was also a good one: http://www.thefreshloaf.com/node/59966/community-bake-maurizios-oat-porridge-sourdough
Enjoy!