This unbelievable Chocolate Frosting Recipe is made with only 4 simple ingredients. It starts off as a rich ganache, and then it's whipped into a fluffy, spreadable consistency you'll absolutely love.
Set a glass or metal bowl over a pot of gently simmering water to create a double boiler (do not let the water touch the bowl). Add heavy cream to bowl and heat until the cream feels hot to the touch (140 to 150 degrees).
Add chocolate and whisk until smooth. Remove the bowl from heat and place in refrigerator to cool, stirring occasionally, about 2 hours (see note 4 for how to use an ice bath).
Stir in the vanilla and salt. In a standing mixer fit with the whisk attachment, or with an electric hand mixer, mix on medium-high speed until mixture is firm enough to hold a soft dollop. The frosting will continue to firm up as it sits.
Notes
Bittersweet chocolate: Pick a good chocolate that is around 60% to 70% cacao. The tastier the chocolate, the better the frosting.
Heavy cream: You want heavy cream or heavy whipping cream so the frosting sets up. Unfortunately, the recipe won't work with half-and-half or whole milk.
Salt: A pinch of salt really makes the chocolate flavor pop.
Ice bath: Speed up the process of cooling the chocolate frosting and use an ice bath. Place the bowl in a slightly larger bowl of ice water, stirring constantly, to chill the ganache quicker.
Yield: One recipe makes 4 cups of frosting, which should be enough for a 9-inch cake with 2 layers or at least 2 dozen cupcakes.
Make ahead: After beating, the frosting will thicken up and may need to be beaten again before using.
Storage: Use right away, or cover the unbeaten ganache and refrigerate for up to 5 days. When ready to use, beat until fluffy. Chocolate frosting is best enjoyed at room temperature, but may soften if your house is too warm.