Grease and line a 18 X 28cm baking tin with baking paper and set aside.
Place biscuits into the Thermomix bowl and crush by pressing Turbo until only small chunks remain. Set aside.
Place the milk chocolate, butter and condensed milk into the Thermomix bowl and melt on 60 degrees, Speed 2, 3-4 minutes (until melted).
Add the crushed biscuits, coconut and cocoa powder to the Thermomix bowl. Mix on Reverse, Speed 2, 10-15 seconds (using the spatula to help mix).
Press mixture firmly into the prepared baking tin.
Melt the white chocolate and coconut oil in a clean and dry Thermomix bowl on 60 degrees, Speed 2, 3-4 minutes (until melted).
Pour the melted chocolate over the top of the slice, decorate with the chocolate easter eggs and place into the fridge to set for 3 hours.