INGREDIENTS
2 1/4 cups
sugar
3/4 cup
unsweetened cocoa powder
1 1/3 cups
brewed coffee
1 1/4 tsp
Kosher salt (reduce to 1 teaspoon if using table salt)
2 1/2 tsp
baking soda
2 1/2 cups
plus 2 Tablespoons all purpose flour, sifted
1 cup
plus 2 Tablespoons canola oil
2
large eggs
1 1/3 cups
buttermilk
1
egg yolk
2 tsp
vanilla extract
3 cups
powdered sugar
1/2 cup
sour cream, at room temperature
1/4 cup
half and half or cream
1/4 cup
brewed coffee, cooled
3/4 cup
unsalted butter
6 oz
unsweetened chocolate