👩🍳 Instructions
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1
Preheat oven to 350°F (175°C). Grease and flour two 8-inch round cake pans.
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2
In a large bowl, whisk together flour, sugar, cocoa powder, baking soda, baking powder, and salt.
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3
In a separate bowl, whisk buttermilk, oil, eggs, and 1 tsp vanilla extract. Add wet to dry ingredients and mix on low until just combined.
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4
Stir in hot coffee/water. Divide batter between pans. Bake 30-35 mins. Cool in pans 10-15 mins, then transfer to wire rack to cool completely.
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5
For cookie butter: Pulse graham crumbs in a food processor until fine. Add melted butter, milk, brown sugar, 1 tsp vanilla extract, ¼ tsp salt, and optional cinnamon. Process until smooth and spreadable.
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6
For buttercream: Beat softened butter until creamy. Gradually add sifted powdered sugar and cocoa powder, mixing on low, then beat on medium-high until light and fluffy (3-5 mins).
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7
Add 2-4 tbsp heavy cream, 1 tsp vanilla extract, and ½ tsp salt. Beat until combined and desired consistency is reached.
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8
To assemble: Level cake layers. Place one layer on platter. Spread half of cookie butter, then a layer of chocolate buttercream. Top with second cake layer.
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9
Spread remaining cookie butter, then another layer of buttercream. Frost sides of cake with remaining buttercream. Chill cake for 30 minutes.
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10
For marshmallow fluff: Combine egg whites, 1 cup sugar, water, and cream of tartar in a heatproof bowl over simmering water. Whisk constantly until 160°F (71°C).
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11
Transfer to mixer; add vanilla bean paste and pinch of salt. Beat on high speed for 7-10 minutes until thick, glossy, and stiff peaks form.
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12
Pile marshmallow fluff onto chilled cake. Use a kitchen torch to toast fluff until golden brown and slightly charred. Serve immediately.
💡 Notes
Ensure all dairy and eggs are at room temperature for best results. Cake layers and buttercream can be made ahead. For best torched marshmallow results, use a kitchen torch.
🥗 Nutrition (per serving)
Calories
650 kcal
Protein
9g
Total Fat
35g
Saturated Fat
20g
Carbs
80g
Fiber
4g
Sugar
60g
Sodium
350mg
Cholesterol
90mg