Preheat oven to 350°.
To prepare crust, place first 5 ingredients in a food processor; process until fine crumbs form.
Place 1 egg white in a small bowl; beat with a fork until frothy. Add 3 tablespoons of the beaten egg white through food chute with food processor on; process just until combined. Discard any remaining egg white. Press the crumb mixture into a 9-inch round removable-bottom tart pan or a 9-inch springform pan coated with cooking spray. Bake at 350° for 7 minutes. Cool completely on a wire rack.
To prepare the filling, combine milk, 2 tablespoons sugar, and egg yolks in a small saucepan. Sprinkle gelatin evenly over milk mixture. Let stand 5 minutes. Cook over medium heat 5 minutes or until gelatin dissolves and mixture begins to thicken, stirring constantly. Remove from heat; add white chocolate, stirring until chocolate melts and mixture is smooth. Scrape white chocolate mixture into a medium bowl. Place bowl in a larger ice-filled bowl until mixture cools and thickens (about 4 minutes), stirring constantly (do not allow gelatin mixture to set). Gently stir 1/4 cup whipped topping into white chocolate mixture; gently fold in remaining 3/4 cup whipped topping. Scrape into prepared crust using a rubber spatula; spread evenly to edge of crust. Cover pan with plastic wrap; chill at least 1 hour.
To prepare topping, place raspberries in a large bowl. Remove plastic wrap from tart pan; remove sides of tart pan. Heat jelly in a small saucepan until melted, stirring constantly. Remove from heat; stir in juice. Drizzle jelly mixture over raspberries; toss gently to coat. Spoon raspberry mixture evenly over filling. Refrigerate, uncovered, 15 minutes. Garnish with chocolate curls and mint leaves, if desired.
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