In a saucepan, melt butter over low heat. Add dates and pecans; cook over low heat, stirring constantly, until dates are softened. Cool for 5 minutes.
In a bowl using an electric mixer, beat Splenda Sweetener and egg substitute for 3 minutes on medium speed.
Transfer to saucepan. Cook over low heat, stirring constantly, until mixture thickens, about 3 minutes. Stir in rice cereal. Cool until mixture can be handled.