Using a tablespoon, scoop batter onto parchment-lined baking sheets. Put no more than 6 to 8 on a sheet pan, as the batter will spread.
Bake for 8 minutes. Let cool completely.
Pour 1 packet of Duncan Hines(R) Frosting Creations(TM) Orange Creme Flavour Mix into 1 can of Duncan Hines(R) Frosting Creations(TM) Frosting Starter. Stir until evenly blended. Repeat with second can and packet.
Spread 1 tablespoon of the Orange Creme frosting you just created on the flat sides of half of the whoopie pies and top with remaining pies.
Store your whoopie pies between layers of wax paper to prevent them from sticking together.