White chocolate fudge you can make without a candy thermometer--does it get any better than that?
Stir the chocolate chips and marshmallow crème until mixture is smooth. Add the rainbow jimmies, vanilla, and 1/4 cup of the crushed graham crackers and stir to combine. Pour into the prepared pan and top with remaining 1/2 cup of crushed graham crackers. Press down lightly. Refrigerate for 1 hour.