INGREDIENTS
cake
3 oz
bittersweet chocolate, chopped
1 cup
all purpose flour
2 tbsp
unsweetened cocoa powder
1/2 tsp
baking soda
1/2 cup
unsalted butter, room temperature
1/2 cup
packed golden brown sugar
1/2 cup
sugar
2
large eggs
1 tsp
vanilla extract
1/2 cup
buttermilk
3/4 cup
ground walnuts (measure them after grinding, not before)
icing
4 oz
bittersweet chocolate, chopped
1/2 cup
unsalted butter, room temperature
3 cups
powdered sugar
2 tbsp
unsweetened cocoa powder
1
few Tablespoons buttermilk, as needed
1 tsp
vanilla
ground walnuts for garnish