Hot Milk Sponge Cake shared by MrT

1/4 cup Milk
2 tsp Butter
1-1/4 cups Flour
1 teaspoon Baking Powder
3 Eggs
1-1/4 cups Sugar
3 Egg Yolks

Preheat the oven to 350 degrees. Grease and lightly flour an 8 by 11-inch sheet tray. Heat milk and butter until the butter melts. Stir the flour and baking powder together. Put the eggs, sugar, and yolks in a bowl and set over a hot water bath, whisking until the egg mixture triples in size. Fold in the flour mixture and the milk. Pour into the prepared pan. Bake for 10 minutes.

This recipe needs to be made twice, as this is only enough cake for one layer.