Moist nutty chocolate brownies

1. Preheat oven to 180C. Prepare a 24x 30cm baking tray. Line bottom with a piece of parchment paper, butter the paper and dust the inside of the pan with flour.
2. Melt chocolate in microwave. Cool down to 45C before use.
3. In a bowl, cream butter with rubber spatula. Consistency of butter should be smooth and creamy but not airy. Stir in chocolate, egg (lightly beaten), sugar followed by flour and nuts.
4. Pour batter into baking tray and smoothen surface with spatula.
5. Bake for 19- 22mins; at this point the top of the cake will be dry but a knife inserted in the center will come out wet. Transfer the pan to a cooling rack and allow brownies to cool.