Gooey Chocolate Oatmeal Bars

Bahan-bahan (12 porsi)

• 1 cup old fashioned oats
• 1 cup all-purpose flour
• 1/2 cup light brown sugar
• 1 teaspoon baking soda
• 1/2 teaspoon kosher salt
• 1/2 cup melted coconut oil or butter
• 1 large egg
• 2 teaspoons vanilla extract
• 1 cup dark chocolate chunks or chips
• 1 stick (1/2 cup) salted butter
• 3/4 cup brown sugar
• 1/4 cup real maple syrup