Preheat oven to 200C.
Peel and quarter the beetroot. Place on baking tray and drizzle with olive oil. Cover with foil and bake in oven for 30 minutes.
Remove foil and bake until the beetroot are caramelised and roasted through. Usually around 30-40 minutes.
Remove and allow to cool.
Heat oven to 180C. Line a 12 hole muffin tin with paper cases.
Puree the beetroot until smooth with a stick blender or food processor.
In a heat proof bowl combine butter, sugar, coconut oil, water and dark chocolate.
Microwave for 2 minutes or until melted and slightly bubbling. Stir until all the ingredients come together.
In a separate bowl combine the besan flour, cocoa powder and baking powder. Give a good whisk to incorporate.
Add in the 2 eggs and mix to combine fully.
Add the beetroot puree and stir to combine.
Fill the muffin cases 3/4 full and bake for 25-35 minutes. The cakes are ready when firm to touch and a skewer inserted comes out with some crumbs attached.
Once cooled top with some ganache and sprinkle with some cocoa.
The ganache recipe can be found here.