Gâteau Breton (Brittany butter cake): Stage 1
Preheat the oven to 390°F (200°C).
Put into food mixer bowl: 500 g flour, 250 g butter in small pieces, 290 g caster sugar, 10 g Vanilla sugar, 4 egg yolks, 1 egg and 2 tablespoons rum.
Put into food mixer bowl: 500 g flour, 250 g butter in small pieces, 290 g caster sugar, 10 g Vanilla sugar, 4 egg yolks, 1 egg and 2 tablespoons rum.