Instructions: Preheat the oven to 375 degrees.

Roll out each sheet of pastry on a lightly floured surface to a 10-inch square. Cut out 3 (3- by 5-inch) rectangles and paint with the egg glaze. Transfer to lightly greased cookie sheet and bake until puffed and brown, about 20 minutes. Transfer to a rack and cool.

In a small saucepan over medium-low heat, gently heat the white wine. Remove from the heat and stir in the saffron. Let infuse for 10 minutes, then strain the wine into a clean bowl. Stir the creme fraiche into the saffron wine, and set aside.

In a bowl combine the mayonnaise, chives and lemon juice, and stir well. Fold in the crabmeat, and then gently fold in the caviar, being careful not to break the eggs. Season, to taste, with salt and pepper.

Split each pastry into 2 layers. Place 1 layer on each of 4 plates. Spread a layer of crabmeat salad on top of the pastry, and lay 3 asparagus spears on top. Drizzle a bit of saffron creme fraiche over the asparagus, then top with pastry, and continue layering, ending with a layer of pastry on top. Drizzle saffron creme fraiche over the pastry layer, and continue with the remaining 3 servings. (Each napoleon will have 2 crabmeat and asparagus layers, and 3 pastry layers.)

Serve garnished with grape tomatoes and chives.

This recipe yields 4 servings.

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