Mulling Spice Jam Bars Recipe

Ingredients

• 1 cup sliced almonds, divided
• 2 ¼ cups all-purpose flour
• 1 teaspoon baking powder
• 1 cup unsalted butter, melted
• 1 cup firmly packed light brown sugar
• 7½ teaspoons pumpkin pie spice, divided
• 1 teaspoon kosher salt
• 1 teaspoon vanilla extract
• ¾ cup grape jam
• 1 ½ teaspoons orange zest
• Confectioners’ sugar, optional