Best Homemade Brownies

Oh man, this one is addicting! Pure heaven! I love how this recipe has that shiny glaze on top when it is done cooking!

3 c sugar
3 c flour
3 cubes butter
pinch of salt
1 Tbsp vanilla (I use Mexican vanilla)
6 eggs
6 Tbsp cocoa powder
Optional:
chocolate chips
chopped nuts
Pat into baking dish. Bake at 350 for 30 minutes.