Apple Danish

Name: Apple Danish
Prep time: 30 min
Cook time: 35 min
Total time: 1 h 5 min
Cuisine: American
Ingredients: 1 tablespoon unsalted butter; 2 apples (cored, peeled, and sliced thin); 1/4 cup packed brown sugar; 1 teaspoon ground cinnamon; 8 ounces cream cheese (softened); 1/4 cup granulated sugar; 1 egg yolk; 1/2 teaspoon pure vanilla extract; Pinch fine sea salt; 1 sheet puff pastry (thawed); 1 egg white; 1 tablespoon coarse sugar (optional); 1/3 cup powdered sugar (optional, for glaze); 1 1/2 teaspoons milk (optional, for glaze); 1/4 cup sliced almonds (optional)