Banana Bread, Hamilton Hall

• 3 bananas mashed (whole)
• 2 eggs (whole beaten)
• 200 gr sugar
• 130 gr all purpose flour
• 130 gr cake flour
• 65 gr butter (unsalted)
• 55 gr brown sugar rounded
• 16 ml buttermilk
• 5 gr baking powder
• 4 gr vanilla