Preheat the oven to 350º F.
In a large bowl, add the dry ingredients and whisk to blend.
In a smaller bowl, add the wet ingredients and whisk to blend.
Pour the wet ingredients into the dry ingredients and mix. Try not to overmix the batter so the cake can turn out fluffier.
Add the cake batter to two 8-inch round cake pans. Spread the batter out and bake for 40 minutes.
Insert a toothpick into the cakes to test if they are done. If the toothpick comes back clean, the cakes are ready. If there are crumbs or batter on the toothpick, you will need to bake a bit longer.
In a standing mixer, add the frosting ingredients except cocoa powder.
Leave ¾ of the frosting in the bowl and add the cocoa powder and mix.
Spread the batter onto the cake's first layer. Add the top layer and frost the top and sides of the cake.
Add marshmallows and candy cane.
For piping directions, see the blog post for step by step directions.