Decadent S'mores Cake

Follow our step-by-step guide on how to make Decadent S'mores Cake.

1. Step 1

   Begin by assembling all your ingredients for a seamless baking experience.

2. Step 2

   Preheat your oven to a cozy 350°F (175°C) and prepare two 9-inch cake pans by lining the bottoms with parchment paper and giving them a light spray of baking spray.

3. Step 3

   In a spacious mixing bowl, blend the cake mix, eggs, milk, and melted butter using an electric mixer until the batter is smooth and well incorporated.

4. Step 4

   Add in the espresso powder and 2 teaspoons of vanilla extract, mixing until combined.

5. Step 5

   Divide the batter evenly between the prepared pans, smoothing the tops with a spatula for an even bake.

6. Step 6

   Bake in the preheated oven for 25 to 30 minutes, or until a toothpick inserted into the center comes out clean.

7. Step 7

   Once baked, let the cakes cool in the pans for 20 minutes before transferring them to a wire rack to cool completely.

8. Step 8

   While the cakes are cooling, whip up the luscious chocolate ganache.

9. Step 9

   Place chocolate chips in a heatproof bowl.

10. Step 10

    In a small saucepan, gently simmer heavy cream over medium-low heat, stirring constantly for about 6 minutes.

11. Step 11

    Pour the hot cream over the chocolate chips and let it sit for 5 minutes.

12. Step 12

    Stir gently in a circular motion until the chocolate is fully melted and combined with the cream.

13. Step 13

    Allow the ganache to cool at room temperature until it thickens to a spreadable consistency, which should take about 1 ½ hours.

14. Step 14

    Next, let’s create the fluffy marshmallow frosting.

15. Step 15

    In a small saucepan, bring 2 inches of water to a simmer over medium-low heat.

16. Step 16

    In the bowl of a stand mixer, combine egg whites, granulated sugar, and cream of tartar.

17. Step 17

    Place the bowl over the simmering water, ensuring it doesn’t touch the water.

18. Step 18

    Whisk constantly until the mixture reaches 160°F (70°C) and the sugar dissolves, which should take about 8 to 10 minutes.

19. Step 19

    Remove from heat and beat on high speed until stiff peaks form, around 6 to 7 minutes.

20. Step 20

    Set aside 2 cups of this delightful marshmallow cream and transfer the rest to a piping bag fitted with a large star tip.

21. Step 21

    Once the cakes are completely cooled, use a serrated knife to level the tops if needed.

22. Step 22

    Place one cake layer on a serving plate, cut-side up.

23. Step 23

    Spread the reserved 2 cups of marshmallow cream evenly over the top, then sprinkle with 1/2 cup of graham cracker crumbs.

24. Step 24

    Gently place the second cake layer on top, cut-side down.

25. Step 25

    Use the piping bag to fill any gaps between the layers with marshmallow cream and smooth the sides with an offset spatula.

26. Step 26

    Refrigerate the stacked cake uncovered for 30 minutes to set.

27. Step 27

    After chilling, pour 1 ¼ cups of the cooled chocolate ganache over the top of the cake, spreading it evenly with a large spatula.

28. Step 28

    Use the remaining ganache to frost the sides of the cake, smoothing it into a beautiful layer.

29. Step 29

    With the marshmallow cream in the piping bag, pipe 10 large rosettes around the top edge of the cake.

30. Step 30

    Sprinkle the center with the remaining 1/4 cup of graham cracker crumbs.

31. Step 31

    Arrange graham cracker rectangles upright around the edge of the cake in a spoke-wheel design, and pipe one large rosette in the center for a stunning finish.

32. Step 32

    Refrigerate the cake uncovered until you’re ready to serve, allowing it to chill for at least 30 minutes or up to 48 hours.

33. Step 33

    Just before serving, use a kitchen torch to lightly brown the marshmallow rosettes, adding a touch of toasty flavor.

34. Step 34

    Slice into this decadent S'mores Cake and savor every delicious bite!.