Candied Bacon Pecan Bars

• 1 stick butter
• 1 cup packed light brown sugar
• 1/3 cup maple syrup
• ¼ cup heavy cream
• ½ teaspoon pumpkin pie spice
• 2½ cups pecans, coarsely chopped
• 1 recipe Pumpkin Pie Spice Candied Bacon, chopped

For the shortbread crust:

• 1½ sticks butter, cut into ½-inch pieces
• 2 cups all-purpose flour
• ½ cup packed light brown sugar
• ½ teaspoon kosher salt
• 1 large egg