Halloween Cake with a surprise inside

This Halloween cake hides a rainbow spiral inside—perfect for a spooky surprise!

Hard

Our own summary of the original — the full post and photos live at createdby-diane.com.

A white cake mix is divided and tinted in orange, green, purple, and white, then swirled into two pans. After baking, the cakes are stacked with black frosting and topped with a poured black glaze. Finish with a white "Boo!" piped on top and black jimmies around the edge.

Ingredients

2 batches of white cake mix, from a large bag mix

Fun colors of orange, green, purple and white food coloring (including Americolor white food coloring)

2 store bought chocolate frosting

Americolor Super Black Coloring

White frosting

Black jimmies

Directions

Make two batches of white cake mix from a large bag mix. Divide the batter evenly into four separate bowls.

Add food coloring to each bowl: orange, green, purple, and white (use Americolor white to make one batch extra white). Mix until evenly colored.

Spoon different amounts of each colored batter into two 7-inch round cake pans, then use a knife to create a swirled pattern.

Bake according to package directions, then allow cakes to cool completely.

Trim the tops of the cooled cakes so they are flat and even.

Flip the top cake upside down so that when you slice it, the design appears as a mirror image of the bottom cake.

Stir Americolor Super Black into the two store-bought chocolate frostings until fully black.

Spread a layer of black frosting between the two cakes. Microwave the remaining black frosting for 30 seconds, stir, then pour it over the top of the stacked cake.

Use an offset spatula to spread the poured frosting, giving the sides a quick swoop and smoothing the top.

Pipe "Boo!" using white frosting, then press black jimmies around the bottom edge.