(Preparation 1) Lightly grease a pound cake pan with butter (not listed), dust with cake flour, and chill in the refrigerator. Start preheating the oven to 180℃.
(Preparation 2) Bring the eggs to room temperature. Melt the butter in the microwave. Sift the flour and baking powder together.
Beat the eggs with a hand mixer, then add the sugar and beat well until the mixture thickens.
Add the melted butter a little at a time (so that the mixture doesn't separate) and mix well after each addition.
Fold in the dry ingredients. Once mixed, fold in the adzuki beans.
Pour the batter into the cake pan (about 80% full) and level the batter, making a dent in the center. Then, put into the oven and bake for 45 to 50 minutes.
Story Behind this Recipe
I wanted to make something Japanese-style in a pound cake pan.
This cake is a little sweet because of the adzuki beans. Adjust the amount of sugar to taste. Once baked and cooled, I think it's better to wrap the cake in plastic wrap and leave overnight to make it even more moist.