1Heat oven to 350. In a small bowl, combine all crust ingredients; mix well. Press mixture in bottom and up sides of 9 inch tart pan with removable bottom or 9 inch pie pan. (If using tart pan, place on cookie sheet for easier handling). Bake at 350 for 10 minutes. Cool.
2Meanwhile, heat whipping cream in medium saucepan until bubbles form around edge of pan. Remove from heat; add chocolate and stir until melted. Cook over low heat until all of chocolate is melted, stirring constantly. Cool 5 minutes or until lukewarm.
3Place slices strawberries in a single layer in crust. Pour melted chocolate mixture over strawberries.
4Place marshmallow creme in microwave-safe bowl. Microwave on Medium for 30 seconds or until softened. Stir just until smooth. Quickly drop marshmallow creme by the spoonfuls over chocolate layer. With the tip of the knife, swirl marshmallow creme and chocolate to marble. Arrange 8 strawberries around the edge of tart. Refrigerate at least 30 minutes before serving.