Ingredients
Equipment
Method
- Preheat oven to 325°F (160°C). Grease an 8x8 inch baking pan and line with parchment paper.
- Separate the eggs. In a large bowl, beat the egg yolks and sugar until pale yellow and creamy.
- Add the melted butter and vanilla extract to the yolks, beating until combined.
- Mix in the flour until evenly incorporated.
- Slowly pour in the lukewarm milk and water while beating on low speed until smooth.
- In a separate clean bowl, whip the egg whites until stiff peaks form.
- Gently fold the egg whites into the batter in three batches. Do not overmix; leave some white lumps floating.
- Pour the batter into the prepared pan. Bake for 45-60 minutes, until the top is golden and the center jiggles slightly when shaken.
- Cool completely in the pan, then refrigerate for at least 3 hours before dusting with powdered sugar and slicing.
Notes
The milk must be lukewarm to prevent the butter from hardening. Chill thoroughly before serving for clean slices.