Buttermilk Chocolate Cake

Ingredients:2 cups plain flour
3/4 cup brown sugar
3/4 cup white sugar
1/4 cup cocoa powder
1 tsp cinnamon powder
2 tsp baking powder
125g butter, melted
1 1/2 cups buttermilk
2 eggs

Frosting
1/3 cup margarine at room temperature
1/2 cup cocoa powder
3-4 cups icing sugar
1/4 cup buttermilk
1 tsp vanilla extract




Method:
Preheat oven to 200 degrees c.
Grease a large ring or round tin or if you have a slab tin, that would be suitable too.

Place all the dry ingredients in a bowl (flour, sugars, cocoa, cinnamon, baking powder)
Mix on a low speed and gradually mix in your wet ingredients - buttermilk, eggs, vanilla extract until it's smooth.
Pour ingredients into the tin and bake for 20-25 minutes
Leave to cool in tin for about 15 minutes, remove and leave to cool completely on a rack or plate.  Make your frosting!
Firstly, mix your margarine with your cocoa, mix well, then gradually a cup at a time, add the icing sugar, and some buttermilk and mix until you get a smooth consistency.
When you pick it up with a spoon it should 'ribbon' i.e. you should see it's texture when it spills back into the bowl like below.  (who wants to put their finger in that???)
Spread onto your cooled cake with a spatula or knife
It will set, but personally if I'm going to eat it I like eating it whilst the frosting is still a bit wet!