Growing up in Georgia, boiled peanuts became a part of every road trip. My family just loves them and when I realized they could be made just as easily at home, I make sure they are always in my freezer to quickly boil up and eat whenever the hankerin' hits. You can leave out the Cajun seasoning and garlic powder if you just want them the old fashioned way. Both are lip smackin' good.
Put the peanuts in the crock pot and cover with water, enough water so that when you push them down about 2" of water is still above them. Add in the Cajun seasoning, garlic powder and salt. Stir, cover and cook on high for 3 hours, reduce to low and cook for an additional 9-10 hours or until the texture you like them. If you want to freeze them, let them cool then put in a freezer bag. To reheat, place the amount you want to eat, cover with water and boil for 5 minutes.