Created by Fizzybrat on September 13, 2017
Step 1: Preheat oven to 350 degrees F.
Step 2: Grease a 15x10x1-inch or a 13x9x2-inch baking pan; set aside.
Step 3: In a medium bowl, combine flour, sugar, baking soda, and salt
Step 4: In a medium saucepan combine water, butter, and cocoa powder. Bring mixture just to boiling, stirring constantly. Remove from heat.
Step 5: Add the cocoa mixture to the flour mixture. Beat with an electric mixer on medium speed until combined.
Step 6: Add the eggs, buttermilk, and vanilla. Beat for 1 minute (batter will be thin).
Step 7: Pour batter into prepared baking pan.
Step 8: Bake about 25 minutes for the 15x10x1-inch pan, about 35 minutes for the 13x9x2-inch pan, or until a wooden toothpick inserted in the center comes out clean.
Step 9: In a medium saucepan combine butter, cocoa powder, and buttermilk. Bring mixture to boiling. Remove from heat. Add powdered sugar and vanilla.
Step 10: Beat with an electric mixer on medium to high speed until smooth. If desired, stir in pecans.
Step 11: Pour warm Chocolate-Buttermilk Frosting over the warm brownies, spreading evenly. Cool completely in pan on a wire rack. Cut into bars. Makes 24 brownies.