Preheat oven to 350 degrees. Beat butter or margarine and peanut butter in large mixing bowl with an electric mixer until creamy. approximately 1 minute.
Add egg substitute,honey,and vanilla. Beat on high speed for approximately 1 1/2 minutes. Add splenda and beat on medium speed until well blended about 1 1/2 minutes. Mixture may be crumbly.
Roll level tablespoon of dough into balls and drop onto a lightly oiled or parchment lined cookie sheet. 2 inches apart. Flatten each ball with fork. pressing a crisscross pattern into each cookie. Bake 7 to 9 minutes or until light brown around the edges. Cool on wired rack.