• Preheat oven to 350° F and grease a 18x13'' pan, or line with parchment paper.
• In a medium size sauce pan add margarine, water and cocoa powder and mix well using a wire whisk.
• Add in flour, and sugar and mix until blended.
• Finally add in baking soda, salt, buttermilk, cinnamon, vanilla, eggs and mix well.
• Pour mixture into prepared pan and smooth with a spatula to make sure it is dispersed in an even layer.
• Bake for 30-35 min.

Frosting

• Start preparing frosting 5 mins before the brownies are done.
• In a medium size sauce pan bring margarine, cocoa powder, powder sugar, milk, and vanilla to a boil.
• Whisk together until there are no lumps.
• Pour over hot brownies using a spatula to make sure the frosting is spread evenly.
• Cool and serve!