When you use dark chocolate, its brownies. Use white chocolate and get blondies. Both will have a different texture and taste.
Double boil in a large container, 300 grams of chocolate with 100 grams of butter. Let it cool completely.
In a large container, whisk together 3 eggs and 200 grams of sugar.
Combine the chocolate butter with the sugary eggs. Add a teaspoon of vanilla essence while whisking them together.
Premix, 100 grams of flour with a teaspoon of baking powder and a pinch of salt.
Mix the dry and wet ingredients. Pour into a parchment lined baking tray. Bake in a preheated oven for 30-40 mins at 170C.
Let it cool fully before slicing.