Dulce de Leche Apple Bars

Bahan-bahan (16 porsi)

• 1 1/2 cups all purpose flour
• 3/4 teaspoon baking powder
• 3/4 teaspoon baking soda
• 3/4 teaspoon ground cinnamon
• 1/2 teaspoon salt
• 1/2 cup (1 stick) salted butter, (at room temperature)
• 1 cup packed light brown sugar
• 2 large eggs
• 1 teaspoon vanilla extract
• 1 1/2 cups peeled, chopped apples ((see recipe notes below))
• 1/2 cup dulce de leche
• 2 tablespoons salted butter
• 1 1/2 cups powdered sugar
• 1/4 teaspoon vanilla extract
• 1 1/2 to 2 tablespoons half and half cream