Add eggs 1 at a time and blend for 40 seconds before adding second one. Beat until pale and frothy

Sift the dry ingredients together in a large bowl.

Gradually Add the dry ingredients into the butter and blend until well incorporated

Add the wet ingredients to the butter mixture and mix until just combined.

Fold in the crushed Oreos and mix until just combined. Do not crush the oreos completely, there should be some bite sized pieces

Allow to cool for 20 minutes. Demould and cool completely

Beat the butter until light and fluffy. Add the confectioners' sugar and cream and mix.

Mix in the crushed Oreos into the remaining batch of buttercream. Blend well

Place second layer of the cake and frost on top and sides

Chill cake for 45 minutes once crumb coat is done. Do final coating and smoothen it

Using buttercream, stick m&m or dairy shots on cream portion of Oreo. For Antenna, I have used toothpick

Stick eyes on the cake as shown

Now start piping on the cake, even if it isn't perfect doesn't matter as this is Monster cake. Place Antennas on top. Cake is ready to be gorged on