Preheat oven to 400F. On lightly floured surface, roll thawed pastry sheet to 14x12 inch rectange. With sharp knife, cut off 2 inches from ong side to make a 12 inch square; cut 14x2 inch strip lengthwise into four 1/2 inche wide strips. Brush edges of pastry square with water; attach a pastry strip on top of each edge, pressing gently and trimming to fit. Place on baking sheet.
Sprinkle almonds over pastry (not over strips).
In bowl, combine plums, 1/4 cup sugar and the lemon zest; toss to combine. Arrange plums, overlapping, in rows over almonds; reserve any juices from plums. Sprinkle plums with remaining 2 T sugar. Bake 20 to 25 minutes or until browned and bubbly. Brush top with any reserved plum juice. Serve warm or at room temperature.
From: McCall's August 1993