2 sticks butter, softened
1 1/3 cups sugar
3 eggs, room temperature
3 egg yolks, room temperature
1 1/2 tsp vanilla extract
1 1/2 tsp water
1/2 tsp salt
1 1/2 cups cake flour
- With an electric mixer, beat the butter until smooth. Slowly add sugar, and beat 4 minutes until light and fluffy.
- Stir together eggs, yolks, vanilla, and water. Pour slowly into mixing bowl while the mixer is on. Add salt.
- Sift flour in, 1/2 cup at a time, folding into batter with a spatula each time.
- Pour into a well-greased 9 x 5 loaf pan, and smooth.
- Bake at 325 degrees for 70-80 minutes. Let cool 5 minutes, then turn onto a wire rack. Serve and store at room temperature.