Cinnamon Swirl Chocolate Chip Pumpkin Cookie Bars

Bahan-bahan (24 porsi)

• 1/2 cup brown sugar
• 4 tablespoons salted butter, at room temperature
• 2 teaspoons cinnamon
• 2 sticks (1 cup) salted butter
• 1/2 cup pumpkin butter
• 1 cup brown sugar
• 1 large egg, at room temperature
• 2 teaspoons vanilla extract
• 2 1/2 cups all-purpose flour
• 1 teaspoon baking soda
• 1 teaspoon cinnamon
• 1/4 teaspoon nutmeg
• 1 teaspoon kosher salt
• 1/2 -1 cup semi-sweet chocolate chips