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Oreo cake chocolate layer cake topped with cookies and cream birthday cake icing
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4.91 from 33 votes

Oreo Cake

A deliciously moist chocolate cake sandwiched together with oreo buttercream. 
Prep Time20 minutes
Cook Time30 minutes
Cooling time1 hour
Total Time50 minutes
Course: Dessert
Cuisine: Family Food
Servings: 16
Author: Sarah Rossi

Ingredients

For the cake:

  • 350 g Butter
  • 350 g Sugar
  • 6 Eggs
  • 30 g Cocoa Please see recipe notes
  • 270 g Self raising flour
  • 100 g Dark chocolate

For the Butter cream:

  • 300 g Butter
  • 600 g Icing Sugar
  • 154 g Oreos 1 pack

For Decoration:

  • 154 g Oreos 1 pack

Instructions

  • Preheat oven to 180c.
  • Grease 3 x 7" round sandwich tins and line the bottom with baking paper.  
  • Cream your room temperature butter with your sugar until it’s pale, light and fluffy.
  • Beat in the eggs, one at a time, wiping down the sides of the bowl as you go and ensuring everything is well mixed. (It might start to look a little curdled, don't worry!)
  • After this, mix in your flour and cocoa. If you’ve been using a mixer, do this bit by hand. It helps to keep the sponge light.
  • Stir in the melted and slightly cooled chocolate. 
  • Spoon into your tins, smooth out with the back of a spoon. Make a bit of a dip in the middle to account for rising
  • Bake for about 30 minutes or until a skewer comes out clean. You might need to adjust the time by 5 minutes either way depending on your oven.
  • Meanwhile make your icing. Beat your butter until it’s pale, light and fluffy.
  • Use a food processor to blizz one pack of your Oreos to a fine dust. 
  • Beat in your icing sugar, once you are happy with the consistency fold in the crumbled Oreos.
  • When your cakes are completely cold, use a carving knife to level them. Just trim the top crust off. Remember, this is important, it’s not a waste of cake. If you don’t do this, with a cake this size it will be wonky.
  • Top each layer with a spread of your oreo buttercream.
  • Pipe a circle around the outside of two of the layers, sit each on the one before.
  • On the top layer, pipe small dollops all over, and top with your whole Oreo biscuits. 
  • Enjoy!

Notes

  • I always use really good quality Green & Black Cocoa. This means that you can use less cocoa for a deeper taste. If you're using a less intense cocoa, you may want to add a little more, say 50g. However, I do think that the texture of the cake isn't quite as good then.

Nutrition

Calories: 738kcal | Carbohydrates: 89g | Protein: 6g | Fat: 41g | Saturated Fat: 24g | Cholesterol: 148mg | Sodium: 404mg | Potassium: 164mg | Fiber: 2g | Sugar: 68g | Vitamin A: 1105IU | Calcium: 33mg | Iron: 3.1mg