Ingredients:
- 1/2 pound unsalted butter at room temperature
- 2 cups sugar
- 4 extra-large eggs at room temperature
- 1/4 cup grated orange zest (from 4 large oranges)
- 3 cups all-purpose flour plus 2 tablespoons
- 1/2 teaspoon baking powder
- 1/2 teaspoon baking soda
- 1 teaspoon kosher salt
- 1/4 cup freshly squeezed orange juice
- 3/4 cup buttermilk at room temperature
- 1 teaspoon pure vanilla extract
- 2 cups good semisweet chocolate chunks
- Syrup:
- Ganache:
- 1/2 cup heavy cream
- 1 tsp instant coffee granules