The Best Pumpkin Bars I've Ever Had

Bahan-bahan (24 porsi)

• 2 cups (250g) all-purpose flour (spooned & leveled)
• 1 and 1/2 teaspoons baking powder
• 1 teaspoon baking soda
• 1 teaspoon salt
• 1 and 1/2 teaspoons ground cinnamon
• 2 teaspoons store-bought or homemade pumpkin pie spice*
• 1 cup (240ml) vegetable oil*
• 3 large eggs
• 1 cup (200g) packed light or dark brown sugar
• 1/3 cup (65g) granulated sugar
• 2 Tablespoons (30ml) pure maple syrup
• 1 (15 ounce) can pumpkin puree*
• 1 and 1/2 teaspoons pure vanilla extract
• 8 ounces (226g) full-fat brick cream cheese, softened to room temperature
• 1/4 cup (4 Tbsp; 56g) unsalted butter, softened to room temperature
• 3 cups (360g) confectioners’ sugar
• 1 teaspoon pure vanilla extract
• 1/4 teaspoon store-bought or homemade pumpkin pie spice*
• 1/8 teaspoon salt
• optional: sprinkles for decorating