Chocolate, Beetroot, Ginger Cake

Ingredients:
1 cup self raising flour
1/2 cup brown sugar
1 cup cacao
1 cup grated beetroot
2 thumb pieces ginger
2 tablespoons maple syrup
1 teaspoon coffee
1 teaspoon bicarbonate of soda
2 teaspoons baking powder
2 teaspoons mixed spice
1/2 cup oil
1 flax egg: 1 tablespoon flax, 3 tablespoons water
"buttermilk": 1 cup soya milk, 1 tablespoon apple cider vinegar.