Ingredients
Equipment
Method
- Preheat oven to 325°F and grease pan.
- Whisk egg yolks with sugar.
- Add butter and vanilla.
- Mix in flour, then milk.
- Whip egg whites to stiff peaks.
- Fold whites into batter gently.
- Bake 50–60 minutes.
- Cool completely before slicing.
Notes
Do not overmix the batter—this is key to forming the layers.