INGREDIENTS
•
1 (17.3-oz.) package frozen puff pastry (2 sheets), thawed
•
1 stick (1/2 cup) unsalted butter, room temperature
•
3 Tbsp. granulated sugar
•
3 Tbsp. brown sugar
•
3 tsp. ground cinnamon
•
1 large egg + 1 teaspoon water
•
Coarse sugar, optional