chocolate & sweet potato cake

Chocolate & Sweet Potato Cake

(on the left is the original recipe from Bushveld Banquets, on the right is my heavily modified recipe)


180g butter at room temperature (100g)
360g brown sugar (50g)
4 eggs
450g cake flour (120g rice flour, 30g corn starch)
100g cocoa powder (50g)
15ml baking powder
180g dark chocolate
400g sweet potato, cooked, peeled and grated/mashed
400ml buttermilk (25ml normal milk)

Ganache (I didn't make)
20ml instant coffee powder
400ml cream
300g dark chocolate
120g butter

Cream butter & brown sugar together in a large bowl until smooth. Beat in the eggs one by one. Sift together the flour, cocoa & baking powder and fold into the creamed mixture. Fold in the melted chocolate, sweet potato and then buttermilk and mix well. Pour batter into a greased tin (or 2 if you're making a layer cake) and bake at 180C for 30 min until tester comes out clean (mine was a loaf pan and much thicker, I baked it for about an hour with aluminum foil on the top to keep it from getting too dark). Cool on a wire rack.

Ganache
Combine coffee powder, cream, chocolate and butter in the top half of a double broiler. Heat over simmering water until the ingredients have melted to a smooth mixture, stirring occasionally. Cool and then cover the sides and top of the cake.