Cakes & CupcakesNo. 6633 · The 2026 edition
Leftover Halloween Candy Chocolate Cake Recipe
Turn your leftover Halloween candy into a decadent chocolate cake with buttercream frosting and all your favorite fun-size bars.
Our own summary of the original by Salty Canary — the full post and photos live at saltycanary.com.
This recipe transforms leftover Halloween candy into a rich chocolate cake. The cake is made from scratch with coffee for depth, then layered with chocolate buttercream and topped with M&M's, Mars, Snickers, and 3 Musketeers bars. A final drizzle of chocolate sauce makes it irresistible.
Ingredients
Directions
- Preheat your oven to 350°F.
- Grease two 9-inch cake pans with butter, then dust with cocoa powder, tapping out any excess.
- In a large bowl, sift together the sugar, flour, cocoa powder, baking powder, baking soda, and salt. Whisk to combine.
- In a separate bowl, whisk together the eggs, buttermilk, vegetable oil, and vanilla extract.
- Pour the wet ingredients into the dry ingredients and beat with an electric mixer on medium speed for 2 minutes.
- Add the hot coffee and mix until just combined. The batter will be thin.
- Divide the batter evenly between the prepared pans.
- Bake for 30 to 35 minutes, or until a toothpick inserted in the center comes out clean.
- Let the cakes cool in the pans for 30 minutes, then turn them out onto a wire rack to cool completely.
- While the cakes bake, make the frosting: In a large bowl, beat the butter and vanilla on medium-high speed until light and fluffy.
- In another bowl, sift together the powdered sugar, cocoa powder, and salt. Whisk to combine.
- Gradually add the dry mixture to the butter, 1 cup at a time, mixing on medium speed after each addition.
- With the mixer on low, add the heavy cream. Then increase speed to medium and beat for 2 minutes.
- Once the cakes are completely cool, place one layer on a cake stand and spread a layer of frosting on top.
- Place the second cake on top and apply a thin crumb coat over the entire cake. Let it set.
- Frost the cake with the remaining buttercream. Press M&M's around the bottom edge, then decorate the top with whole and halved candy bars and extra M&M's.
- Just before serving, drizzle with chocolate sauce.
Per serving
- 78.0 fat g
- 243.0 carbs g
- 197.0 sugar g
- 1723.0 calories
- 16.0 protein g
More photos
Photos hosted by saltycanary.com.