INGREDIENTS
3/4 cup
firmly packed dark brown sugar
1 cup
dark unsweetened cocoa powder, sifted
1 1/2 cups
all purpose flour
3/4 cup
granulated sugar
1 1/2 tsp
baking soda
3/4 tsp
baking powder
1 tsp
salt
2
large eggs
1
large egg yolk
3/4 cup
buttermilk
1/2 cup
vegetable oil
1 tsp
pure vanilla extract
8 oz
good-quality dark chocolate (60-72%), coarsely chopped
Whipped cream and strawberries, for serving, if desired