Chocolate Banana Cookies

Ingredients (12)

• 1 1/4 cups all-purpose flour
• 1/2 cup Dutch process or unsweetened cocoa
• 1/2 teaspoon baking soda
• 1/2 teaspoon sea salt
• 1/2 cup unsalted butter,
• 1/2 cup granulated sugar
• 1/4 cup packed light brown sugar
• 1 ripe banana
• 1 large egg yolk
• 2 teaspoons pure vanilla extract
• 1 cup semi-sweet chocolate chips
• Flaky sea salt,