To make Banana Bread: Preheat the oven to 350*F.Make sour milk by placing 1 1/2 Tablespoons milk and 1/2 Tablespoon vinegar together in a small bowl and set aside.Place softened butter and sugar in a bowl and beat on high for 2 minutes.
In a separate bowl, whisk together the dry ingredients.Mix the dry ingredients into the wet ingredients just until combined, being sure not to over mix.