Preheat your oven to 350°F (175°C) and grease and flour two 9-inch round cake pans.

In a large bowl, combine the flour, sugar, cocoa powder, baking powder, baking soda, and salt.

Add the eggs, milk, oil, and vanilla to the dry ingredients and mix until well combined.

Carefully stir in the boiling water until the batter is smooth.

Fold in the crushed Oreo cookies.

Divide the batter evenly between the prepared pans.

Bake for 30-35 minutes or until a toothpick inserted comes out clean.

Allow the cakes to cool in the pans for 10 minutes before transferring to wire racks to cool completely.

For the frosting, beat the cream cheese and butter together until smooth.

Gradually add the powdered sugar and vanilla, mixing until fluffy.

Once the cakes are completely cool, frost the top of one layer, add the second layer, and frost the top and sides of the cake.

Decorate with additional Oreo cookies if desired.

Slice and serve!