Walnut Baklava Slab Pie

Name: Walnut Baklava Slab Pie
Ingredients: 2½ cups + 2 tbsp all purpose flour; 8 tbsp unsalted butter, cubed and frozen for 20 minutes; 8 tbsp cream cheese, cubed and refrigerated for 20 minutes; ¼ tsp kosher salt; ½ cup ice water; 6 tbsp unsalted butter; 1¼ cups packed brown sugar; ½ cup light corn syrup; ¼ cup honey; 3 large eggs, lightly beaten; 1 tbsp fresh lemon juice; 2 tsp vanilla; ½ tsp ground cardamom; 1½ cups walnuts, toasted and chopped; ¼ cup roasted salted pistachios; 1 egg yolk; 1 tbsp cold water