-
1
Grease a 15x10x1-inch or a 13x9x2-inch baking pan; set aside.
-
2
In a medium mixing bowl combine the flour, sugar, baking soda, cinnamon, and salt; set aside.
-
3
In a medium saucepan combine the 1 cup butter, water, and the 1/3 cup cocoa powder.
-
4
Bring mixture just to boiling, stirring constantly.
-
5
Remove from heat.
-
6
Add the chocolate mixture to the flour mixture; beat with an electric mixer on medium speed until combined.
-
7
Add the eggs, 1/2 cup buttermilk, and 1-1/2 teaspoons vanilla.
-
8
Beat for 1 minute (batter will be thin).
-
9
Pour batter into the prepared pan, spreading evenly.
-
10
Bake brownies in a 350 degree F oven about 25 minutes for the 15x10x1-inch pan, 35 minutes for the 13x9x2-inch pan, or until a wooden toothpick inserted in the center comes out clean.
-
11
Meanwhile, in a medium saucepan combine the 1/4 cup butter, the 3 tablespoons unsweetened cocoa powder, and the 3 tablespoons buttermilk.
-
12
Bring mixture to boiling.
-
13
Remove from heat.
-
14
Add powdered sugar and 1/2 teaspoon vanilla.
-
15
Beat until smooth.
-
16
If desired, stir in pecans.
-
17
Pour warm frosting over the warm brownies, spreading evenly.
-
18
Cool on a wire rack.
-
19
Cut into bars.
