Yogurt Banana Bread

Name: Yogurt Banana Bread
Ingredients: 1 cup all purpose flour; 1/2 cup whole wheat flour; 1 1/4 tsp salt; 1 tsp baking powder; 1/4 tsp baking soda; 1/4 tsp ground cinnamon; 1/4 tsp ground nutmeg; 3 large ripe bananas, mashed; 1/2 cup well-drained yogurt; 4 1/2 oz unsalted butter at room temperature, plus more for greasing the pan; 3/4 cup granulated sugar; 1/4 cup firmly-packed brown sugar; 2 x eggs; 1/2 tsp vanilla extract