You don't need much in order to make a brownie.
Start by putting your butter and chocolate in a double boiler, a bowl over a pot. It's a culinary equivalent of keeping a poker face - the bottom part with water is boiling, steam is trying to escape, pressure is building, yet on the surface, chocolate stays cool and seemingly untouched by the turbulence of the lower pot. Then you start noticing a little tenderness giving way, the edges soften, butter melts its milky goodness into the dark mass, entangling, emulsifying, it should be shiny like the eyes of a woman who wants to kiss you. Be careful not to overheat it - if you neglect it for too long, it becomes burnt, dull and bitter.
When the chocolate is melted and ready, take it off the heat and give it a moment to rest. While it brings itself back to reason, break eggs into a separate bowl and mix it with sugar. Do not whip it hard - you want some substance, not an airy submissive foam. Once mixed, add your buttery chocolate into the eggs - at this stage, it is better to mix it by hand - you would feel the change of the viscosity as chocolate connects with eggs and unites into a warm and sticky batter that envelopes your fingers. Add flour and knead the little lumps between your fingers, making sure that the batter stays silky smooth. Add a pinch of salt - you'd want complexity of flavors, rather then a one-dimensional sweetness. At this stage you cannot linger any longer - there is a sense of urgency to spread the batter in a form before it cools off. If you fancy nuts - and who doesn't, really - add some on top, pressing it gently into the surface.
Bake it for 25 minutes in a moderately hot oven, taking it out 5 minutes before you think it is ready - you want it to be moist and luscious, not dry and crumbly. Allow to cool before cutting, or even leave it overnight to boost the flavor with anticipation. Close your eyes while taking that first bite, and enjoy, while it coats your taste buds in decadence.
Makes 10 pieces.
120 g dark chocolate
120 g butter
3 large eggs
250 g caster sugar
100 g plain flour
a pinch of salt
100 g nuts (optional)
two bowls, a spoon, a kitchen scale, a 9" rectangular form and a desire to do things.