Yes! There are two ways. First, you can go all the way through the steps of baking, filling, and frosting the cake, then wrap it whole and freeze it for up to 2 months. Then thaw it overnight in a fridge before cutting, dipping and decorating. Alternatively, you can go ahead and cut and dip the petit fours, then freeze them in a freezer-save container. I would hold off on decorating until just before serving.