Ah It's Chocolate Monday Again!! Choc. Ice Cream Cake/ Cloud Nine Brownies/ Choc. Chiffon Pie/ Jim's Special Fudge 🌞

[justaprogressive]

2. I'm quoting the whole recipe.

The recipe is not online it's in a BOOK. Hence the goodreads link.

"what is the "frosting" on this?"

As the recipe recommends:

Cooled cake can be frosted with coconut fudge frosting or glazed
with chocolate icing.

Here's a recipe for chocolate icing ( of course there's store-bought if you're not inclined)

Chocolate Frosting Recipe
This creamy, smooth, shiny frosting is my absolute favorite on layer cakes and cupcakes!
Ingredients

2 ½ sticks (300 g) unsalted butter, softened to room temperature
2 cups (240g) powdered sugar, sifted, plus more as needed
¼ cup (25g) cocoa powder, sifted
1 ½ teaspoons pure vanilla extract
170 g (6 oz.) bittersweet, semisweet, or milk chocolate, melted and slightly cooled
¼ cup (60 ml) heavy cream
Pinch of salt , optional

Instructions

In the bowl of an electric mixer fitted with the paddle attachment, beat butter at medium speed until pale and fluffy, 1-2 minutes. Add half of the powdered sugar and beat until well combined, then add the other half and beat until smooth. Add cocoa powder and beat until completely creamy and smooth. Beat in vanilla and melted chocolate until combined. Add heavy cream, a bit at a time, until desired consistency. Add more powdered sugar if necessary, until frosting is spreadable. Add a bit of salt, to taste, to cut sweetness.
Use immediately or store in the fridge, covered, for up to 3 days. Before using, bring to room temperature and whisk by hand until smooth.

HTH!