Buttermilk Brown Sugar Pound Cake

• 3 eggs
• 450 gr firmly packed brown sugar (light)
• 325 gr all purpose flour
• 240 ml buttermilk
• 130 gr butter (unsalted)
• 55 gr plumped currants
• 5 gr baking powder
• 4 gr vanilla
• 2 gr baking soda
• 1 gr anise extract