Sand Cake

Ingredients

• 185 g fresh butter
• 185 g icing sugar
• 125 g rice flour
• 125 g starch flour (amido)
• 60 g potato flour
• 4 eggs
• 1/4 lemon lemon juice
• 1 spoonful cognac
• 1 tsp bicarbonate of soda
• vanilla

Instructions

1. Work the butter alone, then add the yolks one at a time, always stirring one direction.
2. Add sugar, then cognac and lemon juice, then the three flours.
3. Add bicarbonate and beaten whites (two spoonfuls first to loosen, then the rest gently).
4. Bake in a greased, dusted pan at moderate heat, about an hour.