Layered Pancake Gateau (Hungary) - cooking recipe

Ingredients

FOR THE PANCAKES
5 eggs (separated)
1/4 cup sugar
3/4 cup milk
1/2 cup self-rising flour (sifted)
4 tablespoons unsalted butter (melted)
3/4 cup sour cream
powdered sugar (sifted, for dusting)
lemon wedge (garnish to serve)
FOR THE FILLING
3 eggs (separated)
1/4 cup powdered sugar (sifted)
1 lemon, rind of, grated
1/2 teaspoon vanilla sugar
1 cup ground almonds

Preparation

FOR THE PANCAKES: Preheat oven to Gas Mark 6 (200C or 400F). Grease & line w/parchment paper a deep 8-9-in springform cake tin.
Whisk egg yolks & sugar in a bowl till thick & creamy b4 whisking in the milk. Whisk egg whites in a grease-free bowl till stiff.
Fold egg whites into the egg yolk mixture, alternating w/spoonfuls of the flour & 2 tbsp of the melted butter.
Using a non-stick crepe or frying pan as near to the size of your prepared cake tin as possible, lightly grease it with 1/2 tbsp of the remaining melted butter & use a pastry brush to spread over the surface.
Ladle 1/4 of the batter into the pan & fry the thick pancake on ea side till golden brown. Then slide it into the prepared cake tin. Repeat process using 1/2 tbsp of the melted butter ea time to make 3 more pancakes in the same way & set them aside while you make the filling.
FOR THE FILLING: Whisk egg yolks in a bowl w/the icing sugar till thick & creamy. Stir in the grated lemon rind & vanilla sugar.
Whisk egg whites in a separate bowl. Fold them into the egg yolk mixture b4 adding the ground almonds & mix together well.
TO ASSEMBLE GATEAU: Spread 1/3 of the filling mixture on top of the 1st pancake in the prepared cake tin. Repeat twice more w/the 2nd & 3rd pancakes & top w/the final pancake.
Spread sour cream over the top & bake for 20-25 min or till the top is a pale golden brown.
Remove from oven & leave in the cake tin for at least 10 min b4 releasing the springform pan & removing the gateau & paper lining.
TO SERVE: Transfer gateau to a serving platter, cut into 6-8 wedges & serve warm, liberally dusted w/powdered sugar & the lemon wedges on the side.
PERS NOTE: This may horrify more purist & experienced pastry chefs, but I'm really into prep made easy. While entering this recipe, I kept thinking to myself -- Since we're using a non-stick crepe or frying pan for the pancakes, why not use spray PAM (butter flavored if that settles your mind) vs the butter? Just a thought :-).