PreparationMake curd: Whisk sugar, eggs and yolks in heavy medium saucepan to blend. Mix in lemon juice, butter and peel. Whisk over medium-low heat until mixture thickens and just begins to bubble at edges, about 6 minutes (do not boil). Transfer to small bowl. Press plastic wrap directly onto surface of curd. Chill until cold,at least 2 hours. (Can be made 3 days ahead. Keep chilled.) Make phyllo pastries: Position 1 rack in bottom third and 1 rack in center of over; preheat to 375°F. Line 2 baking sheets with parchment paper. Mix 2 tablespoons sugar and cinnamon in bowl. Place 1 phyllo sheet on work surface (cover remaining phyllo with plastic and damp cloth). Brush phyllo with butter; sprinkle with 1 teaspoon cinnamon sugar. Top with second phyllo sheet. Brush with gutter; sprinkle with 1 teaspoon cinnamon sugar. Repeat layering with remaining 4 phyllo sheets, butter and cinnamon sugar. Trim phyllo stack to 12 inches wide by 18 inches long. Cut stack into four 3-inch-wide by 18-inch-long strips. Cut each strip into six 3-inch squares, forming twenty-four squares. Transfer to baking sheets. Bake phyllo squares 6 minutes. Switch sheets on racks and bake until deep golden brown,about 4 minutes longer. Cool pastries on baking sheets. Beat cream, 2 teaspoons sugar and vanilla in medium bowl until stiff peaks form. Arrange 8 pastries on work surface. Spoon curd into pastry bag fitted with medium star tip. Pipe curd in parallel lines onto each pastry. Top each with second pastry. Spoon whipped cream into another pastry bag fitted with medium star tip. Pipe cream atop second pasties. Top each with third pastry. Transfer to platter. (Can be made 2 hours ahead; chill) Lightly dust napoleons with powdered sugar and serve.
PreparationMake curd: Whisk sugar, eggs and yolks in heavy medium saucepan to blend. Mix in lemon juice, butter and peel. Whisk over medium-low heat until mixture thickens and just begins to bubble at edges, about 6 minutes (do not boil). Transfer to small bowl. Press plastic wrap directly onto surface of curd. Chill until cold,at least 2 hours. (Can be made 3 days ahead. Keep chilled.) Make phyllo pastries: Position 1 rack in bottom third and 1 rack in center of over; preheat to 375°F. Line 2 baking sheets with parchment paper. Mix 2 tablespoons sugar and cinnamon in bowl. Place 1 phyllo sheet on work surface (cover remaining phyllo with plastic and damp cloth). Brush phyllo with butter; sprinkle with 1 teaspoon cinnamon sugar. Top with second phyllo sheet. Brush with gutter; sprinkle with 1 teaspoon cinnamon sugar. Repeat layering with remaining 4 phyllo sheets, butter and cinnamon sugar. Trim phyllo stack to 12 inches wide by 18 inches long. Cut stack into four 3-inch-wide by 18-inch-long strips. Cut each strip into six 3-inch squares, forming twenty-four squares. Transfer to baking sheets. Bake phyllo squares 6 minutes. Switch sheets on racks and bake until deep golden brown,about 4 minutes longer. Cool pastries on baking sheets. Beat cream, 2 teaspoons sugar and vanilla in medium bowl until stiff peaks form. Arrange 8 pastries on work surface. Spoon curd into pastry bag fitted with medium star tip. Pipe curd in parallel lines onto each pastry. Top each with second pastry. Spoon whipped cream into another pastry bag fitted with medium star tip. Pipe cream atop second pasties. Top each with third pastry. Transfer to platter. (Can be made 2 hours ahead; chill) Lightly dust napoleons with powdered sugar and serve.