Preheat your oven to 375°F (190°C).
In a large mixing bowl, combine flour and salt.
Cut in the cold butter until the mixture resembles coarse crumbs.
Gradually add cold water, mixing until the dough comes together.
Wrap the dough in plastic and refrigerate for at least 30 minutes.
In another bowl, mix cream cheese, strawberries, sugar, vanilla, and lemon juice.
Roll out the chilled dough on a floured surface into a rectangle.
Cut the dough into squares and place filling in the center.
Fold the corners of each square to the center and pinch to seal.
Place the pastries on a baking sheet lined with parchment paper.
Brush each Danish with egg wash and sprinkle with sugar.
Bake for 20-25 minutes until golden brown.
Allow to cool slightly before serving.