Cake with strawberry jam
Method
Preheat the oven to 180°C.
Butter the baking tin (21 x 14 cm).
Beat the butter and sugar in a mixer until smooth.
Add the eggs and mix them into the mixture.
Add the flour, baking powder and vanilla and beat in the mixer for about 1 minute.
Pour the mixture into the tin and bake for about 20 minutes.
When the cake is ready, take it out of the oven and leave it to cool for at least 5 minutes.
Turn it out onto a platter and, very carefully, cut it horizontally into two equal layers with a long knife.
Carefully lift off the top layer so that it doesn't break, and spread the jam over the top of the bottom layer.
Just as carefully, put the top layer back and dust the whole cake with icing sugar.