The easiest, fudgiest brownies - in one bowl. Never mess with the boxed stuff again.
Preheat the oven to 350 degrees.
Melt the butter and chocolate in a medium saucepan over low heat.
Remove from heat and mix in the sugar, flour, egg and vanilla.
Pour batter into a greased and floured 8 or 9 inch square pan.
Bake for 20-25 minutes, or until a toothpick comes out almost clean.
Cool slightly in the pan before removing.
"Brownies should be a bit under-cooked for maximum fudginess." - my mother, the sage.