In small bowl, mix cream cheese, butter, strawberry syrup and powdered sugar until creamy. Add red food color; mix well. Assemble whoopie pies by spreading 1 to 2 tablespoons filling between 2 pancakes; the top pancake of each should be a pancake that was baked with pieces of whole cereal on top. Roll edges of whoopie pies in additional crushed cereal. Serve immediately, or cover and refrigerate until ready to serve.