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A chocolate cake with glossy chocolate ganache dripping down the sides, topped with a pile of toasted marshmallows, on a beige plate against a light background.

Indulgent Chocolate S'Mores Cake

This indulgent ChocolateS'Mores Cake is the definition of pure decadence. It starts off with a dense cookie butter infused chocolate cake. Filled with marshmallow fluff, covered in delicious chocolate frosting, covered in chocolate sauce and topped with toasted marshmallows!
Author: Nick Makrides
5 from 2 votes
Print Recipe Pin Recipe
Prep 30 minutes
20 minutes
Total 50 minutes
Course Dessert
Cuisine American
Servings 12
Calories 863 kcal

Ingredients

Cake

  • 1 1/2 cups (200 g) all-purpose flour
  • 6 tbsp cocoa powder
  • 1 tsp baking powder
  • 1 tsp bicarb soda
  • 1 tsp salt
  • 2 tbsp malt powder
  • 1 cup (225 g) brown sugar
  • 1 1/4 cups (300 ml) buttermilk
  • 1/3 cup (85 ml) vegetable oil
  • 2 eggs
  • 1/2 cup (100 g) cookie butter
  • 2 tsp vanilla extract
  • 1/2 cup (125 ml) boiling water
  • 1/2 cup (100 g) mini marshmallows

Frosting

  • 1 cup (250 g) unsalted butter
  • 1 1/3 cups (200 g) powdered sugar
  • 1/2 cup (100 g) cocoa powder
  • 1 1/2 cups (300 g) dark chocolate
  • 1 cup (200 g) marshmallow fluff

Ganache

  • 1 cup (200 g) dark chocolate
  • 1/3 cup (80 ml) heavy cream

Decorations

  • 1 cup dark chocolate
  • 5 graham crackers

Instructions
 

Cake

  • Preheat a fan forced oven to 180°C / 350°F. Spray two 8-inch baking tins with oil spray and line the bottom with baking paper.
  • To a large mixing bowl add the flour, cocoa powder, baking powder, bicarb soda, salt and malt powder. Use a whisk to combine. Add the brown sugar and mix to combine.
  • To a separate large mixing bowl add the buttermilk, oil, eggs and cookie butter and whisk to combine. Add the dry ingredients and mix to combine. The mixture will be thick. Add the vanilla extract and boiling water and mix until well combined.
  • Distribute the batter between the two baking tins, sprinkle each one with mini marshmallows and bake for 20-25 minutes. Allow to cool completely.

Frosting

  • Add the butter to a large mixing bowl. Use an electric mixer to whip until pale and fluffy. About 3 minutes. Add the powdered sugar and cocoa powder and mix until well combined. Scrape down the bowl and add the melted chocolate and mix until everything is well combined.

Ganache

  • Add the cream and chocolate to a heatproof bowl.Microwave for 30 seconds at a time, stirring each time until smooth. Set aside to cool to room temperature.

Let's decorate!

  • Add a dab of chocolate frosting to your serving plate and spread around using a spatula. Add the first layer of cake and pipe a ring of chocolate frosting around it. Fill with the marshmallow fluff and spread around. Add the next layer of cake and cover in frosting.
  • Add the chocolate ganache and spread around letting it drizzle over the edges. Add the giant marshmallows and use a kitchen torch to toast. Alternatively, you can toast these before adding to the cake. See notes.

Video

Notes

Storage
This cake can be stored in an airtight container for up to three days.
Toasting the marshmallows
The easiest way to toast these is using a kitchen torch. Just take care when toasting them with the torch because the marshmallows catch fire easily. Alternatively, you can add these to a baking tray and lightly toast them under your oven grill. Or even add them to a metal skewer and toast them over a safe, outdoor, open flame.

Nutrition

Calories:863kcal | Carbohydrates:93g | Protein:10g | Fat:53g | Saturated Fat:31g | Trans Fat:1g | Cholesterol:82mg | Sodium:436mg | Potassium:571mg | Fiber:8g | Sugar:57g | Vitamin A:673IU | Vitamin C:1mg | Calcium:132mg | Iron:8mg
Keyword Chocolate, marshmallow, S'mores
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