Kids consider their stash of hard-earned Halloween candy sacred, so the concept of leftover candy is a fantasy in a lot of households. Before making any of these desserts, stock up on extra candy in advance, or hit the post-trick-or-treat sale aisles. Store-bought cake, frosting and brownies can be used as timesavers, or you can make your own. Do frost the cake and brownies yourself, because the frosting needs to be wet for the candy to adhere properly. Check out more sweets to make with Halloween candy.