In a pot add the cream, sugar, butter, and corn syrup.

Mix and bring to a boil. Then reduce to a medium-low heat. Allow to cook for approximately eight to 10 minutes stirring every once in a while until the color is a dark brown and the temperature reaches 248 to 252 degrees Fahrenheit.

Turn off the heat and add the vanilla and salt. It will bubble. Mix in completely.

Pour over a 9 x 13-inch sheet pan or pan lined with oiled Gefen Parchment.

Sprinkle it with sea salt.

Allow to harden over eight hours before slicing.