One day, I thought what if I use other nut powder instead of almond powder to make Financiers. I love walnuts and we always keep raw walnuts as snack at home, so I decided to try with them.
I made Walnuts powder using a food processor. It looked much oiler than almond powder so I reduced the amount of butter.
I used confectioner's sugar as usual, but I think brown sugar might bring the earthy taste of walnut better.
It was really nice with a cup of green tea.