Ingredients

  • 2 cups all-purpose flour
  • 2 teaspoons baking soda
  • 14 teaspoon salt
  • 12 lb unsalted butter, softened
  • 1 12 cups sugar
  • 8 ounces semisweet chocolate or 8 ounces bittersweet chocolate, melted and cooled
  • 4 large eggs
  • 1 (8 ounce) carton sour cream
  • 1 cup heavy cream
  • 8 ounces semisweet chocolate or 8 ounces bittersweet chocolate, cut into 1/4 inch pieces
  • 2 tablespoons strong espresso

Method

  • Butter and flour a 12-cup tube pan or Bundt pan.
  • Set a rack in the middle of the oven; preheat oven to 325.
  • In a bowl, stir the flour, baking soda, and salt together.
  • In the bowl of a stand mixer, beat the butter and sugar on medium speed until soft and light, about 5 minutes.
  • Stop the mixer; scrape in the chocolate; beat on medium speed.
  • Beat in the eggs one at a time, beating until smooth after each addition.
  • Stop the mixer and use a rubber spatula to scrape down the bowl and beater.
  • Decrease the mixer speed to low and beat in 1/3 of the flour, followed by half the sour cream.
  • Stop and scrape again.
  • Repeat with another 1/3 of the flour and remaining sour cream, then stop and scrape.
  • Beat in the remaining flour.
  • Give a final mix to the batter with a large rubber spatula.
  • Scrape the batter into the prepared pan; smooth the top.
  • Bake for 55-60 minutes, or until the cake is well risen and a pick comes out clean.
  • Cool the cake in the pan on a rack for 10 minutes, then invert onto the rack, remove the pan, and let cool completely.
  • When the cake is completely cooled, make the glaze: bring the cream to a simmer in a pan.
  • Remove from the heat, add in the chocolate, and allow to stand for 3 minutes to melt the chocolate.
  • Add in the espresso; whisk until smooth; let cool to room temperature.
  • Place the cake, on the rack, on a jellyroll pan to catch drips.
  • Pour the glaze over the cake in a spiral, starting from the center and working outward.
  • Leave the cake on the rack until glaze is set.
  • Use a wide metal spatula to slide the cake onto a platter.
  • Keep the cake under a dome at cool room temperaturerefrigeration will dull the glaze.