Preheat oven to 350 degrees. Spray Star Whoopie Pie Pan with vegetable cooking spray.
In medium bowl, combine flour, cornmeal, sugar, baking powder, salt and pepper. Add sour cream, oil and eggs, stirring just until smooth. Fill cavities 3/4 full, spreading batter to edges of star.
Bake 8-10 minutes or until center of bun springs back when touched. Cool in pan 5 minutes; remove to cooling grid. Repeat with remaining batter.