Preheat your oven to 170 degrees celsius, fan bake.

Lightly grease and line a large metal baking tray with baking paper approx 35x 20cm will be a good size.

In a large sized bowl mix together sugar and sieved cocoa powder before mixing through the oil.

Add your eggs and mix very well. The mixture will be thick and slimy.

Add in the flour, baking powder and cream. Gently fold the mixture until everything has just combined.

Pour the brownie base into your lined tray. Gently spread it out evenly using a flat spatula or back of a spoon. Set aside while you prepare the caramel.

In a small saucepan melt your butter.

Add the tin of sweetened condensed milk, brown sugar and golden syrup. Heat on low, stirring constantly, for one minute or until it is warmed through. Do not allow the mixture to come to the boil.

Remove your caramel from the heat and mix through your green food coloring.

Use the handle of a spoon to make deep swirls all over your brownie base. Next pour over your caramel mixture then repeat the swirling process again. Make sure that you do not over swirl the two layers. You want the caramel and brownie to be evenly swirled but still recognizable as two separate colors.

Bake in your preheated oven for 25 minutes. Your brownie will be done when the edges are golden and the center is firm and not jiggly

Cool fully before slicing and decorating.

Trim the edges of your brownie if you like before slicing them into 18 evenly sized pieces.

You can serve your graveyard brownies as is or you can decorate them.

To decorate. First pipe on some green buttercream or frosting, keep the piping random but add a small amount to every slice. Next add a decoration (gummy worm, eye or chocolate skull) to each piece. Finally sprinkle over some crushed Oreos to resemble dirt.