Lime Tart

Directions

1. Combine cracker crumbs, sugar and butter; press onto the bottom and up the sides of a 9-in. pie plate. Bake at 350° for 12-15 minutes or until lightly browned. Cool completely on a wire rack.
2. In a saucepan, combine sugar and cornstarch. Gradually whisk in cream and lime juice until smooth. Add butter. Cook and stir over medium heat; gradually bring to a boil. Boil for 1 minute. Remove from the heat; stir in lime zest. Cool to room temperature; fold in sour cream. Pour into crust.
3. In a small bowl, beat cream, confectioners' sugar and vanilla until stiff peaks form. Spread over filling. Chill for 4 hours or until ready to serve.