How to Make Banana Upside Down Cake - Zest Plate

Ingredients

• 2/3 cup packed brown sugar
• 4 1/2 tablespoons unsalted butter, cut into pieces
• 3 bananas, sliced into 1/4–1/3 inch rounds
• 1/3 cup unsalted butter, softened
• 3/4 cup granulated sugar
• 1 1/2 teaspoons vanilla extract
• 1/3 cup plain Greek yogurt or sour cream
• 2 large eggs
• 2 overripe bananas, mashed (about 1 cup)
• 1 cup all-purpose flour
• 3/4 cup whole wheat flour
• 1 1/2 teaspoons baking powder
• 1 teaspoon baking soda
• Dash of salt
• 1/2 teaspoon ground cinnamon
• 1/4 cup brown sugar
• 1/4 cup heavy cream
• 4 tablespoons unsalted butter
• 1/4 teaspoon salt