French Butterscotch Magic Custard Cake

"Indulge in the flavors of this French Butterscotch Magic Custard Cake! A blend of textures and tastes that transforms into 3 layers of decadence with just one batter while baking! A flan like base, a rich creamy butterscotch custard center and a very light sponge cake on top. So what's the secret to that incredible butterscotch flavor in the cake? it's all about mixing brown sugar with browned butter! And the crowning glory - the butterscotch topping! When it cools down, it transforms into a fudge-like consistency, adding an extra layer of decadence to this already heavenly treat. Its like icing on the cake, literally "