Sift the flour, baking powder and salt twice. Then set aside.
Combine butter and milk in a saucepan, heat on medium until the butter has just about melted. Remove from heat and set aside.
Using the whisk attachment, beat your eggs on high until blended, about 1 minute.
Add your vanilla extract/beans and sugar gradually and beat until pale and tripled in volume. About 6 minutes according to the book.
Sift one-third of your flour mixture into your egg mixture. According to Fel, sifting here is quite important because it is quite easy to get lumps here. Fold it in with a rubber spatula. Repeat with the remaining flour mixture in 2 more additions.
Reheat the milk mixture until just under a boil. Then add the hot milk mixture into the batter and fold it in.
Scrape the batter into a prepared pan. I used an 8 inch springform pan.
Pop it in the oven at 175°C for 20 to 25 minutes. When done, put a toothpick in and it should come out clean. Cool the cake before serving.
The nutrition information provided are only estimates based on an online nutritional calculator. This is not a comprehensive list of all the nutrients in the recipe (i.e., does not include vitamins, cholesterol, etc). I am not a certified nutritionist. Please consult a nutritionist or doctor for accurate information and any dietary restrictions and concerns you may have.