Here is the recipe I have been using for years from Better Than Store Bought
CARAMEL CORN WITH PEANUTS
Good crunchy peanuts and corn, a crisp molasses-flavored glaze, and you have a version of one of America's favorite nibbles. Homemade, it's never stale, and has as many peanuts as your heart desires.
Makes about 6 to 7 cups
2 quarts (8 cups) freshly popped corn
1/2 cup raw, shelled, and skinless peanuts, preferably the small Spanish ones
1/4 cup (firmly packed) light brown sugar
3 tablespoons unsalted butter
1/4 cup light corn syrup
1/4 cup light molasses
1/2 teaspoon salt
1/4 teaspoon vanilla extract
1/4 teaspoon baking soda
1. Preheat the oven to 250 degrees.
2. Spread the popcorn in a large, well-buttered roasting pan. Sprinkle the peanuts on top and set the pan aside.
3. In a heavy saucepan, combine the sugar, butter, corn syrup, molasses, and salt. Stir over moderate heat until the mixture boils. Continue boiling gently, without stirring, until a candy-jelly thermometer in the syrup reads 250 degrees. Remove from the heat and stir in the vanilla and baking soda.
4. Pour the syrup over the popcorn and peanuts and rapidly mix with a spatula to coat the pieces evenly.
5. Bake the caramel corn in the preheated oven for 1 hour, stirring occasionally, and then cool the candy in the pan.
6. Slip the cooled candy out of the pan with a spatula and break into fairly large chunks. Store in an airtight container for up to about a week.
NOTE-I make this in quantity for my husband to give to about 35 of his co workers. I use the big aluminum steam table pans.
7 2-quart measures of pop corn
8 times the caramel recipe:
2 cups light brown sugar
3 sticks butter
2 cups light corn syrup
2 cups molasses
4 t salt
2 t vanilla extract
2 t baking soda