Red miso adds a deeper taste and a pleasant contrast between sweet and savoury to the brownies.
1. Preheat the oven to 180°C, butter a 20x20cm mold and set aside.
2. Melt together the chocolate, butter and red miso on really low heat or using a water bath.
3. In a bowl, mix together the sugar and flour. Gradually incorporate the dry ingredients to the melted chocolate mix.
4. Remove from the heat and add the eggs one at a time while stirring. Add walnuts kernels, broken in half.
5. Pour the batter into the mold and bake for 25 to 30 minutes.
These brownies are perfect with a cup of hojicha tea or matcha.