Can I prepare this ahead of time?
Yes. Assemble the brie, prosciutto, and cranberry sauce, wrap in puff pastry, brush with egg wash, and refrigerate up to 12 hours before baking.
What temperature should the brie be when I wrap it?
Use cold or room-temperature brie straight from the package. Do not heat it before wrapping, or it will be difficult to work with.
How do I know when it's done baking?
The puff pastry should be golden-brown and puffed, typically 25–30 minutes at 375°F. The brie will begin to ooze slightly at the edges.
Can I use a different fruit sauce instead of cranberry?
Yes. Fig jam, apricot preserves, or cherry sauce work well. Use 4 tablespoons of any fruit-based topping.
What if I don't have prosciutto?
Substitute with thinly sliced serrano ham, jamón, or crispy cooked bacon for a similar salty-savory layer.