Peanut Butter

2 cups dry-roasted or raw peanuts,
    shelled and skinned
1/2 teaspoon salt
1 to 5 drops peanut oil (optional)

Process nuts, salt and peanut oil in a food processor for 90 seconds, stopping and scraping down sides when necessary, or place the nuts, salt and peanut oil in a blender, about 1/4 cup at a time, and purée for 60 seconds.