Chocolate and Walnut Brownie

Method

1. When there is half an hour left before baking, preheat the oven to 200 ºC.
2. Melt the chocolate in a bain-marie and let it cool until lukewarm.
3. Beat the whole eggs with a pinch of salt and the sugar using beaters for about 2 minutes; they should not rise much.
4. Add the lukewarm chocolate to the eggs and stir with a spatula.
5. Gradually add the sifted flour, stirring constantly to prevent lumps from forming.
6. Add the softened butter while continuing to stir.
7. Incorporate the chopped walnuts and stir the batter.
8. Grease the mould with butter and lightly flour it.
9. Fill the mould with the batter and level the surface with a spatula.
10. Place whole walnut halves on top of the batter, forming rows.
11. Bake at 200 ºC for about 25 minutes.
12. Let the brownie cool and dust it with icing sugar on top.