Add the 12 oz of chocolate to a heat safe medium bowl, preferably shallow. In a measuring cup or another bowl, heat the 12 oz of cream in the microwave 55-60 seconds at a time until scalding. It should take about 2 x. You can also heat it over the stove top just until the edges start to simmer. Do not bring to a full boil or the cream will curdle.

Pour the cream over the chocolate and let it sit for 5 mins UNTOUCHED. Do not stir it yet! After 5 minutes, stir with a spatula until smooth. Add the salt and mix again.

Chill the ganache in the fridge for 50 minutes in a large shallow bowl. This helps the ganache chill quickly. The cool air in the fridge will help it set up quicker than if you left it at room temperature. It will take longer to cool if it’s in a deeper bowl.

In the bowl of an electric mixer ( a hand mixer or a stand mixer fitted with the whisk attachment) whip the ganache on medium- high speed until light and fluffy- about 2-3 minutes making sure not to over whip or the frosting will curdle.