Marmalade Cake

Beat the butter and sugar until well combined

Add the eggs one at a time, beating after each addition

Add the flour and baking powder, mixing until a smooth batter forms

Grease and flour a baking dish, then roll out the dough to fit the dish

Prick the dough with a fork and bake in a medium oven for 10 minutes

Let cool

Beat the egg whites until stiff, then add the sugar and vanilla, mixing well. Reserve

Cut the marmalade into thin slices, spread over the cooled cake, and top with a meringue mixture

Sprinkle with chopped nuts, if desired, and bake in a medium oven until golden.