INGREDIENTS
5 oz
unsweetenedchocolate, coarsely chopped
1 1/2 cups
boiling water
1/2 cup
plus 1 tablespoon sour cream (not low fat)
5 tbsp
(1 oz)Valrhona cocoa powder or Dutch process cocoa powder
2 3/8 tsp
baking soda
3/4 cup
butter, softened
1 3/4 cups
dark brown sugar, firmly packed
2 1/2 tsp
vanilla
4
large eggs
2 cups
cake flour
1 tsp
salt
1/4 cup
semi sweet chocolate chips, for decorating cake