Preheat oven to 400°F and prepare a sheet pan with a silicon mat or parchment paper. Set aside.
In a medium bowl stir together the mozzarella cheese, eggs, butter, xylitol, erythritol, stevia, lemon juice, and vanilla. Add the coconut flour, baking powder and salt. Stir into a thick batter and allow it to sit for 5 minutes.
Using a 3 tbsp scoop make a ball, form into a flat oval using your hands then place on prepared sheet pan. Repeat to make 9 ovals spacing them about 2 inches apart.
Bake for 10 minutes. Remove from oven and use the back of a spoon to make an indent for the filling. Prepare filling by combining the cream cheese with the xylitol and placing it into the well of each Danish. Top with 1 tsp of jam for each pastry. Then bake for another 5-6 minutes until golden brown. Allow to cool on the pan for 15 minutes.
Make glaze. Stir together the erythritol, heavy cream and vanilla in a small bowl. Drizzle on top of each Danish. Makes 9 pastries.