Buttermilk Banana Blueberry Bread

Ingredients

1 3/4 cups all-purpose flour
1 teaspoon baking powder
1/8 teaspoon baking soda
1/4 teaspoon salt
1/2 cup unsalted butter
1 cup sugar
2 large eggs
1/4 cup buttermilk
1/2 teaspoon vanilla extract
3 ripe bananas, mashed
1 cup blueberries

Preparation method