I made this cake to share with my life group in winter. It's a dense and heavy cake. I made it in my silicone bundt pan and here's the recipe.
1 3/4 cups self raising flour
1 3/4 cups sugar
3/4 cups cocoa
1 tsp baking soda
1 tsp baking powder
1 egg
1 cup mayonnaise (I use full fat)
1 tsp vanilla
1 1/2 cups milk
Preheat oven to 175 deg c. Sift flour, cocoa, baking soda and baking powder into large mixing bowl and stir in sugar.
Add egg, mayo, vanilla and milk and beat together on low speed until combined, increase speed and beat at medium for 2 minutes.
Pour into a lined 23 cm cake tin and bake 40to 45 minutes or until cake springs back when lightly touched.
Note: since I use bundt pan the cooking time was extended to about 1 hour 10 mins.
Best eaten with vanilla ice cream. Also tastes better after it sits for at least half day.