Finding a peanut butter with only one ingredient (peanuts) —and absolutely no palm oil, added oils, or sugars—is totally doable, though it means you'll encounter natural oil separation (which just needs a quick stir!).
Here are the best, widely available brands that fit your exact criteria:
Add to list Crazy Richard's Natural Peanut Butter — Made with 100% dry-roasted peanuts and literally nothing else. No salt, no sugar, and zero added oils.
Add to listSpread The Love NAKED Organic Peanut Butter — A clean-label, small-batch organic peanut butter made with a single ingredient: organic peanuts.[1]
Add to list
Once Again Organic Creamy/Crunchy Peanut Butter — Offers unsalted/un-sweetened varieties featuring dry-roasted organic peanuts as the sole ingredient.
Add to list
Teddie All Natural Peanut Butter — Contains only fresh-roasted peanuts and a pinch of salt (if you buy the unsalted version, it's just 100% peanuts).
Add to list
Smucker's Natural Peanut Butter — Made purely from peanuts with less than 1% salt (be sure to grab their "No Salt Added" version if you want strictly just peanuts).
Pro-tip: Because these have no stabilizers or palm oil, store the jar upside down for a day before opening to let the natural oils migrate back through, making them much easier to stir!
Would you prefer a completely salt-free option, and do you care if the peanuts are organic or conventional?