10-Minute Homemade Hot Fudge

INGREDIENTS

2/3 cup

heavy cream (I used half-and-half)

1/2 cup

light corn syrup

1/3 cup

dark brown sugar, packed

1/4 cup

unsweetened natural cocoa powder (I used natural, Dutch-process may be used; if your cocoa is particularly lumpy, sift it)

1/4 tsp

salt, optional and to taste

6 oz

dark or bittersweet chocolate, finely chopped (I used 3 ounces 54% and 3 ounces 72%)

2 tbsp

unsalted butter

2 tsp

vanilla extract