I am very proud of this recipe. Just after baking, the outside is crispy and the inside is moist. By significantly reducing amount of butter, I make light financiers. They are very popular.
Since I was in elementary school, I have made financiers. I reached this recipe after trying various amounts of ingredients.
The batter tends to stick to the moulds, so line the bottom of the moulds with baking paper. It's easier. You could use plain flour for dusting the moulds instead of strong flour.
Enjoy Japanese food around the world.