1

Preheat the oven to 350°F. Butter and flour one or two 9-inch cake pans.

2

In a bowl, whisk together the flour, sugar, salt, and baking powder. In a second bowl, whisk together the eggs, egg yolks, 1/2 cup of the milk, and the vanilla.

3

Add the remaining milk and the butter to the dry ingredients. Using a stand mixer fitted with the paddle attachment or a wooden spoon, mix for about 2 minutes, or until well combined.

4

Add one-fourth of the egg mixture. Work until smooth, then work in half of the remaining egg mixture. Add the last of the egg mixture and mix until smooth.

5

Transfer the batter to the prepared cake pans and smooth the tops with an offset spatula. Bake 1-inch-thick cakes for about 25 minutes or a 2-inch-thick cake for about 35 minutes, or until firm to the touch or a toothpick inserted in the center comes out clean. Let cool for 5 minutes in the cake pans and then turn out onto cake racks.