Thaw pastry sheet at room temperature 30 minutes.
Preheat oven to 400 degrees F. Mix chocolate pieces
and walnuts and set aside. Unfold pastry on lightly floured surface. Roll into
12-inch square. Cut into 9 (4-inch) squares. Place
about 2 tablespoons chocolate mixture in center of each square. Brush edges of
squares with water. Fold corners to center on top of filling and twist tightly to seal. Fan out corners.
Place 2 inches apart on baking sheet. Bake 15 minutes or until golden. Remove from baking sheet and cool on wire rack
10 minutes. Sprinkle with confectioners' sugar. Serves 9. VARIATION: For large puffs, cut pastry into 4 (6-inch) squares and place about 1/3
cup chocolate mixture in center of each. Proceed as in step 2. Serves 4. | 
