Brown Sugar Maple Pumpkin Butter Bars

Bahan-bahan (24 porsi)

• 2 sticks (1 cup) salted butter
• 1 cup light or dark brown sugar
• 3/4 cup pumpkin butter
• 1/4 maple syrup
• 2 large eggs
• 1 tablespoon vanilla extract
• 2 1/4 cups all-purpose flour
• 1 teaspoon baking powder
• 1/2 teaspoon baking soda
• 2 teaspoons cinnamon
• 1/2 teaspoon ginger
• 1/2 teaspoon kosher salt
• 1 cup white chocolate chips or chunks
• 2 tablespoons salted butter
• 1 cup powdered sugar
• 3 tablespoons brewed espresso or strong coffee
• 1 teaspoon vanilla extract