This is the frosting I used for my roomie’s Avenue Q themed birthday cake! Aside from some simple colored buttercream, that is. The original (which is pretty much the same as what’s here) can be found at Sweetapolita.com. As you can see from the picture, it is very squish-able when warm. I’d say let it cool more than I did before frosting with it!
Sweetapolita’s Chocolate Fudge Frosting
Yield: Enough for a layer cake, plus some!
1 1/2 c. Unsalted Butter, room temperature
1/2 c. Powdered Sugar
1/2 c. Cocoa Powder (Sweetapolita says “dark”, but my plain worked fine!)
1/3 c. Hot Water
1/4 c. Sour Cream
1 t. Vanilla Extract
1/8 t. Salt
10 oz. Milk Chocolate
5 oz. Dark Chocolate
Beat butter in stand mixer until light and fluffy (Sweetapolita says about 6 minutes). Meanwhile, melt milk and dark chocolate in the microwave, 30 seconds at a time. Let cool but not solidify. Stir the cocoa powder and hot water into a slurry. When the butter is creamed, turn the mixer to low and add powdered sugar, cocoa slurry, sour cream, vanilla, and salt, beating about a minute until combined. Increase to medium speed and beat 2 more minutes. Add the melted chocolates and beat until smooth, about two more minutes. Let set up in the refrigerator for a while before frosting!