Pear Almond Shortbread Bars

Name: Pear Almond Shortbread Bars
Ingredients: For the Shortbread; ½ cup (1 stick) butter; ¼ cup granulated sugar; ½ teaspoon almond extract; ¼ teaspoon kosher salt; ¾ cup white whole wheat flour; ¼ cup almond meal (finely ground almonds); For the Pear filling; 4 small firm but ripe pears (about ¾ pound); ½ lemon (juice and zest); 2/3 cup light brown sugar; 1/4 cup white whole wheat flour (use another tablespoon of flour if your pears are really juicy); 1/8 teaspoon ground allspice; 1/8 teaspoon kosher salt; 3 large eggs and 1 egg yolk; ¼ teaspoon almond extract; For the Topping:; ½ cup sliced almonds; 2 tablespoons turbinado sugar; 1/4 teaspoon kosher salt