I made this cake for a combined Birthday/Bon Voyage dinner last weekend. I love the combination of chocolate and mint and am always keen to try out large layer cakes when cooking for a crowd.
Keep pieces small to ensure it’s not overly rich – maybe try out this technique from the genius Katherine Sabbath!
Ingredients (serves 16-18)
Chocolate Layer Cake
2 boxes Betty Crocker moist devil’s food cake
Mint Buttercream Frosting
200g butter, softened
½ cup milk
½ teaspoon vanilla extract
8 cups icing sugar
2-3 drops peppermint oil (or to taste)
a few drops of green food colouring
Dark Chocolate Ganache
170g dark chocolate melts
¾ cup cream
1 ½ teaspoons corn syrup
2 x Flake bars
3 x Peppermint Crisp bars
3 x double Aero bars
1 x packet Darrell Lea BB’s chocolate mint balls
1 x packet dark Maltesers
Make 4 cakes, according to packet instructions, by halving the batter from each cake mix and baking in 20cm cake tins. Carefully trim cooked cakes where necessary to ensure they are perfectly flat, and use the best 3 (freeze the 4th for another time).
To make the frosting, cream the butter for 1-2 minutes. Add the milk, vanilla extract and half of the icing sugar and beat for at least 3 minutes or until the mixture is light and fluffy. Add the remaining icing sugar along with the peppermint oil and food colouring and beat for a further 3 minutes or until light and fluffy.
Attach your base cake to a cake board or serving tray by using a small amount of frosting as glue. Spread a layer of frosting onto the top of the cake and then top with the next cake layer. Repeat.
Spread frosting onto the top and sides of the cake – don’t worry if you get crumbs in it, this is called the crumb coat. Using a spatula or protractor (as I did!), scrape off excess frosting so you have a thin smooth layer. Refrigerate cake for 30 minutes or until frosting is firm.
Add a second layer of frosting onto the top and sides of cake, again scraping off the excess and creating a smooth finish.
Place chocolate melts into medium bowl and set aside. Heat cream in a saucepan over medium-high heat just until it almost starts to simmer. Remove from heat and pour over chocolate. Let sit for about 5 minutes and then stir with a wooden spoon until chocolate is completely melted and smooth. Stir in corn syrup. Allow to cool until slightly thickened.
Use a spoon to add a few purposeful drips over the top edge of the cake. Then spoon more ganache on top of the cake, allowing it to drip at varying points around the cake.
Top cake with Flake pieces, peppermint crisp shards, Aero pieces, Maltesers and bb’s. Alternate Maltesers and bb’s and make a ring around the base of the cake.
Serve by cutting into small pieces. Enjoy!