Dark Chocolate Olive Oil Skillet Banana Bread - Fresh-Pressed Olive Oil

Ingredients

• 1 1/2 cups unbleached all-purpose flour
• 1/2 cup unsweetened cocoa, regular or Dutch process
• 3/4 cup dark brown sugar
• 3/4 teaspoon baking soda
• 3/4 teaspoon coarse salt (kosher or sea)
• 1/3 cup extra virgin olive oil
• 2 large eggs, lightly beaten
• 1 1/2 cups very ripe bananas (2 to 3), mashed to a smooth purée with a fork
• 1/4 cup sour cream
• 1 1/2 teaspoons vanilla extract
• 1 cup (4 ounces) coarsely chopped dark chocolate
• 1/2 cup chopped pecans or walnuts (optional)
• Whipped cream or vanilla ice cream, for serving (optional)