Red Velvet Marshmallow Spiderweb Cake

This Red Velvet Marshmallow Spiderweb Cake is a classic red velvet cake, frosted with deep black chocolate buttercream, and covered with a spooky web of spiderwebs, made entirely from marshmallows!

The spider on top is entirely edible, and is made from chocolate plastic, a mix of candy coating and corn syrup! The chocolate plastic needs to rest overnight before you can sculpt with it, so if you want to make the edible spider, you’ll want to give yourself enough time to make the plastic in advance. Store-bought fondant can be substituted if you desire.

Author Elizabeth LaBau

For the Candy Spider:

6 oz red candy coating
2 TBSP light corn syrup
Black pearl sprinkles

For the Red Velvet Cake:

11 1/4 oz all-purpose flour (2 1/2 cups)
10 1/2 oz granulated sugar (1 1/2 cups)
1 tsp baking soda
1 tsp salt
2 tbsp unsweetened cocoa powder
8 fl oz vegetable oil (1 cup)
12 fl oz buttermilk (1 1/2 cups)
2 eggs
2 tbsp red gel food coloring
1 tsp white vinegar
2 tsp vanilla extract

For the Buttercream:

6 oz unsweetened chocolate finely chopped
4 fl oz pasteurized liquid egg whites (1/2 cup)
16 oz powdered sugar (4 cups)
1/4 tsp salt
16 oz unsalted butter at room temperature (4 sticks)
1 TBSP vanilla extract
Gel food coloring: I used Americolor Super Black and Super Red

To Decorate:

6 oz large marshmallows




Stay Fancy! ;)

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