How to make magic custard cake

The magic custard cake. A surprise and a delight all in one! 

INGREDIENTS:

• 4 eggs – separated
• ¾ cup sugar
• ¾ cup flour
• powdered sugar – for dusting
• 1 tsp vanilla or lemon extract
• 8 tb (1 stick) butter – melted
• 2 cups milk – room temperature

METHOD:

1. Preheat oven to 325º.
   
2. Grease an 8X8-inch baking pan and line with parchment paper. 
3. Separate eggs and add the whites to a mixer and beat until stiff. Place egg whites in a bowl and set aside. 
4. Beat the yolks, adding the sugar a little at a time while continuing to beat, until light and airy.  Add butter and extract of your choice and beat for an additional 2 minutes.  Slowly add the flour and mix it in until fully incorporated. 
5. Slowly start adding the milk and beat until all is well combined. Add the egg whites 1/3 at a time and gently fold them in with a spatula.  Repeat until all the egg white have been folded in. 
6. Pour the batter into the prepared baking dish and bake for 50-60 minutes. However, I suggest checking at 30 minutes and if getting too brown, cover loosely with foil.
7. Bake until the top is a nice golden brown. 
8. Your magic custard cake is ready to be served!

BUON MANGIATA!