Allow the sheet of frozen puff pastry sheet to sit and thaw for 15 minutes.
Preheat oven to 400 degrees Fahrenheit and lay out a baking sheet lined with parchment or wax paper.
Cream together the sugar, cream cheese, heavy cream and vanilla until smooth.
Cut the puff pastry into 16 rectangles.
Score the edges of each rectangle without cutting all the way through.
Place about a teaspoon of the cream cheese mixture into the center of each.
Top with a little of the strawberry spread and swirl to combine.
In a small bowl, make an egg wash by mixing the egg with 1 tablespoon of water and brush the edges of each pastry.
Bake for 13 minutes or until edges are golden.
Transfer to a cooling rack to cool completely.
Stir together the powdered sugar with 1 tablespoon of water and vanilla.
If too thick add additional water slowly until you reach desired consistency.
Transfer the icing to a zippered sandwich bag and clip off the corner to pipe.
Drizzle over the danishes.