01 -
Preheat convection oven to 350°F.
02 -
In a large bowl, beat sugar, softened butter, and vanilla extract until creamy. Add eggs one at a time, beating well after each addition.
03 -
In a separate bowl, mix cake flour, baking cocoa, baking soda, salt, and instant chocolate pudding mix.
04 -
Gradually add the dry mixture to the wet mixture, alternating with buttermilk, beginning and ending with the dry ingredients. Mix until just combined.
05 -
Gently fold in the semi-sweet chocolate chips.
06 -
Pour the batter into a greased tube pan. Bake in a convection oven at 350°F for 60-70 minutes, or until a cake tester inserted into the center comes out clean.
07 -
Allow the cake to cool completely before applying icing.
08 -
In a saucepan, heat water, butter, and vanilla extract over medium heat until the butter has melted. Remove from heat.
09 -
Stir in cocoa and powdered sugar until smooth. Add heavy cream, one tablespoon at a time, until the desired consistency is reached.
10 -
Begin icing by filling the center hole of the cake, then spread icing over the top and let it flow down the sides. The icing will harden as it cools.