Step 1
Bake the Sponge: Preheat oven to 170°C.
Step 2
Sift together flour, cocoa, baking powder, and baking soda.
Step 3
Mix sugar, oil, milk, vanilla, and vinegar.
Step 4
Add the dry ingredients and mix gently.
Step 5
Fold in the crushed Oreos.
Step 6
Pour into two 6-inch tins.
Step 7
Bake for 30–35 minutes or until a skewer comes out clean. Cool completely.
Step 8
Prepare the Filling: Whip the non-dairy cream until stiff peaks form.
Step 9
Fold in the crushed Oreo biscuits.
Step 10
Make the Ganache: Heat the cream until just simmering. Pour over the chopped chocolate. Let sit for 2 minutes, then stir until smooth. Cool until spreadable.
Step 11
Assemble the Cake: Slice the sponge into layers. Brush with sugar syrup (optional).
Step 12
Spread a layer of Oreo whipped cream.
Step 13
Repeat with the remaining layers.
Step 14
Apply a thin crumb coat and chill for 20 minutes.
Step 15
Cover the cake with chocolate ganache.
Step 16
Decorate with mini chocolates and Oreo halves, and golden sprinkles.