Grease a shape (26 cm or 23 cm) and line it with baking paper. Preheat the oven to 180 °.
Whip the butter and sugar creamy, then add the eggs and stir until smooth. Sift the flour and baking powder and fold in a little salt. Pour in the dough and smooth it out.
Bake for about 1 1/4 hours - needle test!
Take out of the oven and let cool down for about 15 minutes, then turn out onto a kitchen rack and let cool down.
Very variable and well suited for motif cakes. Well suited for freezing.
Variations:
- Replace a quarter of the flour with the same weight of finely ground nuts.
- Add 4 tablespoons of poppy, sesame or other seeds.