Bake the Cake
Preheat your oven to 350°F.
Prepare the cake batter according to the box instructions, but replace the water with:
1 cup water
½ cup Kahlua
Pour the batter into a greased 9×13 baking dish and bake for 30–35 minutes, or follow the time on the box.
Prepare the Marshmallow Filling (Last 5 Minutes of Bake Time)
Add the 16 oz of marshmallow fluff and ¼ cup water to a microwave-safe bowl.
Microwave in 20-second intervals, stirring between each, until the mixture loosens and becomes pourable.
Poke the Cake
When the cake comes out of the oven, poke holes all over the surface using the handle of a wooden spoon — only poke about ¾ of the way down, not all the way through.
Pour the warm marshmallow mixture over the cake, aiming for the holes so it soaks in.
Refrigerate the cake for 1 hour to cool completely.
Make the Hot Cocoa Whipped Topping
In a large bowl, add:
2 cups heavy cream
½ tsp espresso powder
1 tsp vanilla
2 packets hot chocolate mix
Blend with an electric mixer until stiff peaks form. (Keep going — it will whip!)
Spread the whipped topping evenly over the chilled cake.
Finish & Serve
Warm the hot fudge and drizzle or swirl it across the top.
Add maraschino cherries as garnish.
Slice, serve, and Merry Christmas! 🎄✨