Ingredients
For the Chocolate Cake Layers:
• 250g all-purpose flour
• 75g unsweetened cocoa powder
• 1 tsp baking powder
• 1 tsp baking soda
• ½ tsp salt
• 200g granulated sugar
• 200g brown sugar
• 2 large eggs 
• 120ml vegetable oil
• 240ml buttermilk
• 2 tsp vanilla extract
• 240ml hot water
For the Oreo Frosting:
• 200g unsalted butter, softened 
• 400g icing sugar
• 1 tsp vanilla extract
• 200g Oreo cookies, crushed
• 2-3 tbsp milk
For Decoration:
• Ferrero Rocher chocolates 
• Crushed Oreo cookies
• M&M’s
Instructions
Preheat the Oven:
• Preheat oven to 350°F (175°C).
• Grease and line a 10×15 inch jelly roll pan with parchment paper.
Prepare Dry Ingredients:
• In a large bowl, sift together flour, cocoa powder, baking powder, baking soda, and salt.
Mix Wet Ingredients:
• In a separate bowl, whisk together both sugars, eggs, vegetable oil, buttermilk, and vanilla extract until smooth.
Combine Dry and Wet Ingredients:
• Gradually mix the dry ingredients into the wet mixture, then add hot water until the batter is smooth.
Bake the Cake:
• Pour batter into the prepared pan, spreading it evenly.
• Bake for 12-15 minutes or until a toothpick comes out clean.
Roll the Cake:
• After baking, turn the cake onto a clean, cocoa-dusted kitchen towel.
• Carefully peel off the parchment and roll the cake with the towel, starting from the short side. Let it cool.
Make the Oreo Frosting:
• Beat softened butter until creamy.
• Gradually add icing sugar and vanilla, then mix in crushed Oreos and milk for a smooth, spreadable frosting.