Black Cocoa Halloween Cookie Cake -The best spooky treat for Halloween. It's soft and buttery, piped with a colorful buttercream and spooky Halloween sprinkles.
In a large bowl, combine softened butter with both sugars and beat until smooth.
Add in the whole egg, egg yolk and vanilla extract.
Add in all the dry ingredients mixing on low and medium until the dough is combined.
Fold in additional add ins if desired.
Line parchment paper into an 8-inch cake round and press the cookie dough evenly into the cake pan. Bake the cookie cake at 350F for 22 to 26 minutes. Once baked allow it to cool completely before frosting.
Let's make the frosting!
Beat the softened butter for 5 minutes until light and fluffy. The color should change from a yellow to a pale yellow. Sift the powdered sugar and add it into the bowl along with vanilla extract.
Continue to whip the buttercream for another 5 minutes and then add in the heavy cream and then whip for another 3 minutes until light and fluffy. At this point the buttercream should be almost white.
Separate the buttercream into desired colored bowls and add in the gel food coloring until color desired.
Keyword black cocoa, cookie cake, halloween, halloween cookie