Betty Crocker has a simple and easy-to-follow recipe for peanut brittle made with unroasted peanuts. The recipe takes two hours to prepare and cook; it makes 72 servings.
To make Betty Crocker's recipe, preheat the oven to 200 degrees F. Grease two baking sheets and keep them warm in the oven. In a bowl, mix 1 1/2 teaspoons baking soda, 1 teaspoon water and 1 teaspoon vanilla. Set aside.
In a saucepan, combine 1 1/2 cups sugar, 1 cup water and 1 cup light corn syrup. Cook over medium heat until a candy thermometer reaches 240 degrees F, or until a small bit of syrup dropped into cold water forms into a soft ball when removed. Stir in 3 tablespoons butter or margarine and 1 pound shelled unroasted peanuts. Cook while stirring to 300 degrees F, or until a small bit of syrup dropped into cold water forms into hard threads.
Remove the saucepan from the heat and stir in the baking soda mixture until it is light and foamy. Pour half of the mixture onto each of the baking sheets and spread quickly until it is 1/4-inch thick all around. Cool for one hour and break into pieces. Store the peanut brittle in covered containers.