Boiling peeled peanuts
I have to admit that I have never heard of boiling shelled peanuts, but apparently it's not uncommon.  From ZimboKitchen.com :

Quick Instructions

Get your main ingredient ready – 400 g shelled peanuts. Run them quickly through some water to remove dust and other particles.

Put your peanuts in a medium size pot and add your first 1 ltr of water. Add 1 tsp salt and partially cover your pot and bring to the boil. Add another 1 ltr of water when your initial water is finished.

After an average of 1 1/2 hrs (90min) your peanuts should be boiled and tender to enjoy. If not continue boiling until desired tenderness is achieved.


You may serve your snack and go work or play!

Notes:

You do need raw peanuts.

Other sites use pretty much the same recipe (salt &amp; water), but called for longer cooking time. Some said several hours. I would suggest tasting as you go along and adjust salt and cooking time to your liking.