Preheat the oven to <temperature>160<unit>°C</unit></temperature>

Add <quantity>200<unit>g</unit></quantity> of white sugar and <quantity>100<unit>g</unit></quantity> of butter to a saucepan

Warm the butter and the sugar over low/medium heat until the butter melts

Remove from the heat and add <quantity>200<unit>g</unit></quantity> of 50% chocolate. Let it melt into the mixture

Crack <quantity>3</quantity> eggs and add them to the mixture, one by one. Whisk between each egg

Add <quantity>75<unit>g</unit></quantity> of all-purpose flour, <quantity>2<unit>tbsp</unit></quantity> of cocoa powder, <quantity>¼<unit>tsp</unit></quantity> of baking powder and <quantity>5<unit>g</unit></quantity> of salt. Mix to get a smooth batter

Cover a <quantity>20<unit>cm</unit></quantity> x <quantity>20<unit>cm</unit></quantity> baking tray with parchment paper and pour the batter in it. Spread the batter with a spatula. Bake for 30m until it develops a deep brown crust along the edges

Remove from the oven and let it cool down before cutting it into eight pieces. The brownie is ready

Sprinkle some powdered sugar. Enjoy it with a good cup of coffee!