I made this for a chocoholic friend's birthday at work. Needless to say, I had requests for both the recipe and the cake itself for the rest of the week. :D
2¼ cups all-purpose flour
2 tsp. baking soda
½ tsp. salt
½ cup butter
2½ cups packed brown sugar
1½ tsp. vanilla extract
3 ounces unsweetened chocolate, melted
1 cup sour cream
1 cup boiling water
Preheat oven to 350F.
Sift together the flour, baking soda, and salt. Set aside.
In a large bowl, beat butter and brown sugar until well mixed. Add eggs one at a time. Beat in the vanilla, followed by the melted chocolate squares. Add half of the sour cream, and then half of the dry ingredients to the butter mixture until well blended.
Add the remaining sour cream and dry ingredients to the batter. Stir in boiling water.
Bake for 35 minutes. Let cool at least 30 minutes before icing with frosting of choice.