Lemon-Raspberry Ice Cream Bombes

Name: Lemon-Raspberry Ice Cream Bombes
Yield: Makes 6 Servings
Ingredients: 1/2 cup sugar; 1/4 cup fresh lemon juice; 2 large egg yolks; 1 1/2 teaspoons (packed) finely grated lemon peel; 1/8 teaspoon salt; 1/2 cup chilled whipping cream; 1 quart vanilla ice cream; 3/4 cup raspberry sorbet; 2 cups fresh raspberries; Fresh mint sprigs (optional); Lemon peel