Quatre quart au Shiromiso

Today I bake Quatre quart au Shiromiso, which I bought at the exhibition of Kyoto food and products. I cut down on butter by 30% and substitute sour cream for it to make the batter lighter and softer. And I also cut down on sugar as Shiromiso is relatively sweet. As soon as it's just baked and I open an oven door, I smell sweet like cheesecake and get very excited as I'm sure that it succeed smoothly. Same as the smell, it taste like cheesecake without sourness. I will surely keep this recipe on my iPad.