Well, not literally fat-free, but butter-free. I found this recipe on http://allrecipes.co.uk/recipe/6036/vegan-brownies.aspx, but modified it a little bit to be less sweeter and use less oil. This is how it goes:
Ingredients:
250 g - flour,
Ingredients:
250 g - flour,
250 g - brown sugar
60 g - cocoa powder
250 ml water
100 ml - vegetable oil (or olive oil)
1 tsp salt, 1 tsp baking powder
1 tsp vanilla extract
Mix all the dry ingredients in a bowl - the flour, salt, baking powder, sugar and cocoa powder. Then add the oil , vanilla extract and water to this and just mix into a smooth mixture with your hand. Pour it into a 9 inch baking dish and put it in the oven (preheated at 356F or 180C) for about 30 minutes. The insides will be a little wet and gooey, like the original recipe describes. If you prefer it dryer, keep in for some additional minutes.
This was awesome since it didn't need to be blended, or sifted or use any complicated baking ingredients. With a dollop of vanilla or chocolate ice cream, it is an easy shortcut to dessert heaven! We had our friends Lotta, Ty and little Erik over, to watch the track and field OS events with us, and the brownies, ice cream and some peppermint tea kept us quite happy.