Preheat the oven to 175c, and melt the butter in a pan. Dissolve the sugar in the butter.
Pour the mixture into a large bowl and add the other ingredients one by one, mixing each time.
Set the batter in a 6 inch skillet, and bake for 30 minutes. The top should be set, but slightly jiggly. It will cook further as it cools.
You can score your tastebuds some extra points by topping the brownies with greek yogurt. Yum!