Oreo Birthday Cake

By vealam

Ingredients

• For the Cake:
• 1/2 cup unsalted butter, melted and cooled
• 1 cup granulated sugar
• 3 large eggs
• 1 tablespoon vanilla
• 1 1/2 all purpose flour
• 1 teaspoon baking powder
• 1/2 teaspoon salt
• 3/4 cup buttermilk
• 10 Oreo cookies, crushed and broken
• For the Chocolate Buttercream:
• 12 tablespoons unsalted butter, softened
• 4 cups powdered sugar
• 1/2 cup dark, unsweetened cocoa
• 1 teaspoon vanilla
• 2-4 tablespoons heavy cream (milk will work as well)
• 1/2 teaspoon salt
• For Decorating:
• 1/4 about 1/4 cup rainbow sprinkles
• 16 Birthday Cake Oreos

Details

Servings 12
Preparation time 30mins
Cooking time 60mins
Adapted from sugardishme.com

Preparation

Step 1

Preheat the oven to 350. Butter and flour 3 (or 6 if you have them) mini springform cake pans. For easy cleaning, you can pop the bottom out of the pans, line it with parchment or foil, and then pop it back in (and close the springform ring) before buttering and flouring.
In a large bowl beat the melted butter and granulated sugar. Add the eggs one at a time, beating well between each addition. The batter will look fluffy.
Beat in the vanilla until just combined.
In a medium bowl whisk together the flour, baking powder, and salt. Add ⅓ of the flour blend to the batter and mix until just combined.
Pour in half the buttermilk and mix until just combined. Scrape down the sides of the bowl and repeat the process with ⅓ more of the flour, then the rest of the buttermilk, and finally the remaining ⅓ of the flour.
Fold in the crushed Oreo bits.
Fill the prepared cake pans about halfway (this will yield a total of 6 3-inch rounds) and bake for 30 minutes, or until a pick inserted into the center comes out clean.
Let the cakes cool for at least 10 minutes before carefully turning them out of the pans to cool completely on a wire rack.
If you only have 3 pans, butter and flour the pans again and bake the remaining 3 cakes.
To make the frosting, beat the butter using the whisk attachment until it's fluffy. Add 1 cup of the powdered sugar and beat until coarse crumbles form. Add the cocoa, vanilla, and one tablespoon of the cream. Mix until combined. Add the remaining powdered sugar 1 cup at a time, mixing well between each addition. Beat in the salt for about a minute to make sure it's mixed well.
Carefully level the cake layers. Frost the top of each layer. Stack them in 3's to give you two tall little cakes. Frost the sides and smooth with a spatula.
Frost one side of each Birthday Cake Oreo cookie and affix the frosted side around the base of the cakes (the frosting will glue the cookies to the cake) - 8 cookies should fit perfectly around each cake.
I piped little shapes using a Wilton 1M tip around the top edge to hold in the sprinkles. Cover the top of each cake with sprinkles.