Prepare the biscuit graves by snapping a third of each Lotus biscoff biscuit off at one end, dip in melted dark chocolate, and set on baking paper.
Once the dark chocolate has set, melt white chocolate and pipe designs onto each biscuit gravestone.
Preheat your oven to 140C Fan/160C/325F/Gas Mark 3 and line a cupcake tin with cases.
In a mixing bowl, combine softened baking spread and caster sugar until light and fluffy.
Add in eggs and milk, whisk until well combined.
Fold in self raising flour, cocoa powder, and baking powder until just combined.
Divide the batter evenly between lined cupcake cases, filling them two-thirds full.
Bake for about 25–30 minutes or until a skewer comes out clean, then cool completely.
Mix cream cheese, icing sugar, and vanilla extract until smooth, then stir in crushed Oreos.
Core each cooled cupcake's center to create space for the cheesecake filling.
Fill each hole with Oreo cheesecake mixture using a spoon or piping bag.
Mix softened butter with cocoa powder and icing sugar, adding milk until smooth for chocolate buttercream.
Mix softened butter with icing sugar, vanilla extract, and green food coloring for grass buttercream.
Pipe chocolate buttercream onto each cupcake and smooth the tops.
Push a chocolate-covered biscuit gravestone into each cupcake and sprinkle crushed Oreos around as soil.
Pipe green buttercream around each gravestone for added realism.
Store leftover cupcakes in an airtight container and enjoy within three days.