Cut puff pastry dough into 2 1/2 x 4-inch rectangles. Follow package directions
to brown. Let cool.
Prepare instant vanilla pudding. Let set.
Spread 1 teaspoon of jam on bottom of one puff pastry rectangle. Spread 1 to
2 tablespoons of vanilla pudding on top of another puff pastry rectangle. Place
jam rectangle on vanilla rectangle (pudding to jam).
Melt white chocolate and spread over top of square.