Setup your Big Green Egg for an indirect cook with the ConvEGGtor feet up and stainless steel grid on top with baking stone. Set the temp to 160°C.
Put all the dry ingredients into a bowl and combine.
Add everything else except the chocolate chips and stir together.
Mix in the chocolate chips.
Pour the cake mixture into a greased silicon baking tin (mine’s 28cm x 18cm and about 4cm deep). If you’ve not got a silicon one then line a metal one with silicon coated baking parchment.
Place the brownie on to the baking stone and cook for 45 minutes using a very small handfull of apple chips scattered on the charcoal.
Take off you EGG and place on a baking rack to cool before turning out of the tin.
You should be left with a smoky, slightly gooey brownie. Serve warm with some ice-cream.