Let Pastry Dough (1 sheet) dough thaw for about a half hour until it's still cold but flexible. Preheat the oven to 425 degrees F (220 degrees C).
Roll out dough slightly and place Orange Marmalade (1/2 cup) and Fresh Rosemary (1 tablespoon) in the center.
Then put the Brie Cheese Round (0.5 pound) in on top of the marmalade evenly.
Bring 4 corners up around the brie and twist taut around. Remove excess pastry.
Flip so that the opening side is down onto a parchment lined baking sheet. Whisk Egg (1) and Water (1 tablespoon) together and brush over the whole pastry. Bake for 22-25 minutes.
Serve with pears, apples, or crackers.