Line a 9x9 pan with parchment paper, and light grease. Set it aside.
Add the sugar, corn syrup, cream, chocolate and butter to a large heavy bottomed pot and heat it over medium on the stove top. Stir occasionally as the mixture comes to a boil. 2 cups Granulated Sugar, 1 cups Light Corn Syrup, 12 oz Heavy Cream , 6 oz Chocolate, 1/2 cup Unsalted Butter
2 cups Granulated Sugar, 1 cups Light Corn Syrup, 1/2 cup Unsalted Butter, 1/2 teaspoon Salt
Once boiling, add the candy thermometer and stir constantly until the mixture comes between 238 and 245 Fahrenheit. (Between 238-240 F will give you softer caramels, between 240 and 245 will give you soft and chewy caramels)**
Once the temperature is reached remove from the heat and stir in the vanilla extract and salt. 3/4 tsp Vanilla Extract, 1/2 teaspoon Salt
Pour the mixture into the prepared pan, and spread out the top as needed.
Let the caramels cool until totally set, you can freeze for about 30 minutes, or refrigerate it for a couple hours to speed it up. (They may get too hard in the fridge if left too long, remove from the fridge and let it sit at room temperature for a couple hours to soften a bit) Cut and serve.
Wrap individual caramels in waxed paper by rolling up, then twisting each of the ends to close. Caramels will stay good at room temperature for a few weeks.