200g soft unsalted butter
200g dark chocolate at least 70%
250g caster sugar
1/2 tablespoon vanilla extract
125 g plain flour
1/2 teaspoon salt
150g walnuts, chopped OR 1 cup of white chocolate chips
Preheat the oven to 180°C or 170°C Fan Forced. Melt the butter and chocolate together over low heat in a saucepan, or in the microwave. Let it cool slightly, about 5 minutes.
In a bowl, beat the eggs, sugar and vanilla together. Beat the egg mixture into the chocolate mixture. Fold in the flour and salt – don’t over-beat! Add the nuts or white chocolate chips.
Pour the mixture into a greased and lined 25cm-square tin. Bake for 25 minutes. They are done to perfection when the top becomes slightly speckled.