six dower loves the low-fat peanut butter substitute Better'n Peanut Butter. "I buy it by the case....I am not kidding," says six dower. "It is much lower in fat and calories than regular peanut butter and tastes like fudge. You can purchase the butter at Whole Foods or Trader Joe's. I buy the low sodium version."
goodhealthgourmet has a tip: "If you want to make your own approximation at home, you can buy defatted peanut flour and add your own salt, sweetener, and whatever other flavors you might like. TJ's sells light-roasted, defatted peanut flour, or you can buy the darker roast online."