Cookies and Cream Sheet Cake

This cookies cream sheet cake combines a soft and buttery white cake with plenty of sweet Oreo cookies. The recipe begins as my white cake but with a few updates to the batter to make room for the creamfilled cookie pieces. Top the cake with sturdy yet light whipped cream frosting which is a combination of heavy cream cream cheese vanilla and a bit of confectioners sugar. The frosting is lightly sweetened so theres plenty of room for more Oreos. This is a fun simple and manageable cake for a crowd of Oreo lovers!

Ingredients
2 and 12 cups 285g cake flour spooned leveled
2 teaspoons baking powder
12 teaspoon baking soda
1 teaspoon salt
34 cup 12 Tbsp 170g unsalted butter softened to room temperature
1 and 12 cups 300g granulated sugar
4 large egg whites at room temperature
34 cup 180g sour cream at room temperature
1 Tablespoon pure vanilla extract
34 cup 180ml whole milk at room temperature
1 and 14 cups chopped Oreos 110g about 10 whole Oreos
Whipped Cream Frosting
6 ounces 170g fullfat brick cream cheese softened to room temperature
34 cup 90g confectioners sugar
1 teaspoon pure vanilla extract
1 and 12 cups 360ml cold heavy cream or heavy whipping cream
1 cup chopped Oreos 90g about 8 whole regular Oreos
optional mini or regular Oreos for garnish
Instructions
Make the cake Preheat the oven to 350F 177C. Generously grease a 913inch cake pan.
Whisk the cake flour baking powder baking soda and salt together. Set aside.
Using a handheld or stand mixer fitted with a whisk attachment beat the butter on high speed until smooth and creamy about 1 minute. Add the sugar and beat on high speed for 2 minutes until creamed together. Scrape down the sides and up the bottom of the bowl with a rubber spatula as needed. Add the egg whites. Beat on high speed until combined about 2 minutes. Then beat in the sour cream and vanilla extract. Scrape down the sides and up the bottom of the bowl as needed. Mixture will appear curdled and thats ok. With the mixer on low speed add the dry ingredients just until incorporated. With the mixer still running on low slowly pour in the milk until combined. Do not overmix. Whisk it all by hand to make sure there are no lumps at the bottom of the bowl then fold in the chopped Oreo pieces. Avoid overmixing.
Pour batter into prepared cake pan. Bake for around 3235 minutes or until the cake is baked