Steps to make the cake:
Preheat your oven to 325 degrees.
Using a hand or stand mixer, cream the butter and sugar together until light and fluffy (approximately 5 minutes).
Then add the vanilla and salt and mix until incorporated.
Add the eggs to the bowl one at a time mixing until combined after each addition.
Then add the cocoa powder and mix until fully incorporated.
Add the flour mixture to the bowl alternating with the sour cream beginning and ending with flour.
Pour the batter into your greased 12-cup bundt pan and bake the cake for approximately 1 hour and 15 minutes. The cake is done once an inserted toothpick comes out clean.
Allow the cakes to cool for 10-15 minutes before removing it from the pan. Allow the cake to completely cool before adding the chocolate ganache.
Steps to make the chocolate ganache/glaze:
In a saucepan, heat the heavy cream under medium heat until it begins to bubble around the edges.
Once it begins to bubble turn it off and pour the cream over the semi-sweets. Do not stir. Allow it to sit for 3 minutes to give the chocolate time to soften and melt.
After three minutes, stir until combined and silky chocolate forms. Pour the chocolate as desired over the cake allow it to set then serve.