Oatmeal Chocolate Chip Bars

Ingredients (13)

• 3/4 cup butter, cut into tablespoon pieces
• 1 1/4 cups packed brown sugar
• 1/4 cup granulated sugar
• 1 large egg
• 1 egg yolk
• 1 tablespoon pure vanilla extract
• 1 1/4 cups all-purpose flour
• 1 teaspoon baking powder
• 1/2 teaspoon sea salt
• 1/4 teaspoon ground cinnamon
• 1 cup old fashioned oats
• 3/4 cup semi-sweet chocolate chips
• Flaky sea salt, for sprinkling on bars