Martha Collison's Mint Chocolate "Ice Cream" Cake

June  5, 2017
2 Ratings
Photo by Jula Gartland
  • Serves 10 to 12
Author Notes

"This mint chocolate ice-cream cake really has the wow-factor! It's colourful, fun and the made using everyone's favourite flavour combination: chocolate and mint! This is the perfect cake for a birthday party - whether you're baking for children or a grown-up party, everyone will love it! The freshness of the mint works really well with the richness of the chocolate cake, and you have the different textures of the ice cream and the spongey cake with the creamy layers in between. There are a few steps to this cake, but don't let that put you off, it's surprisingly easy to make, just make sure you're patient waiting for the cake to cool because a hot cake and frozen ice cream don't mix well!"

From Twist: Creative Ideas to Reinvent Your Baking (HarperCollins 2016). —Food52

What You'll Need
  • For the cake and buttercream:
  • 250 grams flour
  • 450 grams superfine sugar
  • 100 grams cocoa powder
  • 2 teaspoons baking soda
  • 1/2 teaspoon salt
  • 250 milliliters buttermilk, or 220 milliliters milk + 1 tablespoon lemon juice
  • 120 grams butter, melted
  • 2 eggs
  • 250 milliliters coffee (or water)
  • 600 grams confectioners' sugar
  • 1 teaspoon peppermint extract
  • 1 to 2 teaspoons milk
  • Green gel food coloring
  • 25 grams dark chocolate, cut into tiny cubes
  • For decorating:
  • 225 grams dark chocolate, chopped and divided
  • 1 ice cream cone
  • 75 grams unsalted butter
  • Sprinkles, to decorate
  1. For the cake and buttercream:
  2. Preheat the oven to 350° F, then grease three 8-inch cake pans and line with baking parchment.
  3. Put the flour, sugar, cocoa powder, baking soda, and salt into a large bowl. Whisk to combine.
  4. If you don't have buttermilk, pour the milk into a large jug and add the lemon juice. Leave to stand for five minutes until thickened.
  5. Whisk the buttermilk/acidified milk and eggs into the melted butter followed by the coffee or water.
  6. Pour the wet mixture into the dry ingredients, whisking until a smooth batter has formed. It will be very runny.
  7. Divide between the tins then bake for 25 to 30 minutes until risen and a skewer inserted comes out clean. Leave to cool in the tin for ten minutes before turning out onto a cooling rack. You can chill the cakes in the freezer or refrigerator while you make the buttercream.
  8. To make the buttercream, beat the butter and confectioners' sugar together using an electric hand-held whisk until really light and fluffy. Start on a slow speed to mix in the sugar, then turn up the speed to incorporate as much air as possible. Add the peppermint extract and enough milk to loosen the icing a little. Add a tiny amount of green food coloring, being really careful to tint the icing just enough to resemble the classic ice-cream—you don’t want it too dark.
  9. Sift the dark chocolate cubes to remove any chocolate dust or flakes as these will turn the icing brown and make it look less authentic. Fold the chips into the icing by hand.
  10. Use an offset spatula to spread some of the mint buttercream onto each cooled cake layer, then stack the layers on top of each other. Cover the whole cake with the remaining icing, smoothing the top and sides as much as possible. You don’t need to crumb coat this cake, as the chocolate crumbs will blend into the mint chocolate chip icing. Chill the cake for at least 30 minutes.
  1. For decorating:
  2. To make the ice-cream ball, melt 100 grams of the chocolate in a small heatproof bowl over a pan of simmering water. When it is completely melted, add 1 tablespoon of water and stir quickly. The chocolate will seize and go grainy, which while usually undesirable, creates a great ball of "ice cream." You may need to add a little more water. When the mixture is thick, use an ice cream scoop to make a large ball. Gently put into the cone and leave to cool.
  3. To make the chocolate drizzle, melt the remaining 125 grams chocolate and butter together in another small heatproof bowl over a pan of simmering water.
  4. When smooth, leave to cool for five minutes before carefully pouring over the top of the chilled cake. Use the back of a spoon to encourage the glaze to run over the edges of the cake.
  5. Put the ice-cream cone face down into the middle of the glaze, then arrange a few sprinkles around the center.

See what other Food52ers are saying.

2 Reviews

NStra July 5, 2019
How much butter is used for the frosting? It's listed once in the ingredient list, and the instructions don't say how much is used for the cake vs frosting.
betty August 28, 2017
Where is the ice cream in this cake? The description mentions layers of cake and ice cream, but there is no ice cream in the cake itself.