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

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

Add in the eggs one at a time, beating well after each addition.

Gradually add in the boiling water, milk, and vegetable oil, mixing until well combined.

Crush 12 Oreo cookies into small pieces and fold them into the cake batter.

Pour the batter evenly into the prepared cake pans and bake for 35 minutes or until a toothpick inserted in the middle comes out clean.

Let the cakes cool completely before removing them from the pans.

Once cooled, place one cake on a serving plate and spread a layer of chocolate buttercream frosting over the top.

Crush 12 more Oreo cookies into small pieces and sprinkle them over the frosting.

Place the second cake on top of the frosted bottom layer. Spread another layer of frosting over the top and sides of the cake.

Crush the remaining 12 Oreos and sprinkle them around the base of the cake.

Use gummy bears to decorate the top of the cake, creating a fun and playful design.

Serve and enjoy your delicious Max and Ruby cake with friends and family!