Caramel Banana Upside Down Bread

Caramel Banana Upside Down Bread
Ingredients
cup packed brown sugar
3 tablespoons unsalted butter, cut into several pieces
About 2 bananas, sliced in inch rounds
cup chopped walnuts or pecans (optional)
1 cup whole wheat flour
cup white granulated sugar
1 teaspoon baking powder
1 teaspoon baking soda
teaspoon salt
teaspoon ground cinnamon
1 cup mashed overripe bananas
2 large eggs
cup coconut or vegetable oil
cup buttermilk
1 teaspoon pure vanilla extract
For the Caramel Glaze:
2 tablespoons butter
2 tablespoons brown sugar
2 tablespoons heavy cream
Source Link: http://www.daringgourmet.com/2013/06/10/caramel-banana-upside-down-bread/