Here are five delicious ways to use up the leftover gingerbread house. Leftover Gingerbread House Truffles. Gingerbread Ice Cream. Gingerbread House Milkshakes. Gingerbread House Pie Crust. Gingerbread House Ice Cream. Gingerbread Bark. Gingerbread Ice-Cream Cake. Click to see full answer. Thereof, what can I do with leftover gingerbread houses? Here are five delicious ways to use up the leftover gingerbread house. Leftover Gingerbread House Truffles. Gingerbread Ice Cream. Gingerbread House Milkshakes. Gingerbread House Pie Crust. Gingerbread House Ice Cream. Gingerbread Bark. Gingerbread Ice-Cream Cake. how long do gingerbread houses last? 12 months Hereof, how do you get rid of gingerbread houses? Put gingerbread houses, icing and candy in your green cart for composting. Remove all non-food items from the gingerbread house before composting. If using a cardboard/foil base, separate the cardboard and foil before recycling in blue cart.Can you eat gingerbread house kits?Once you’ve made your gingerbread and you’ve set it out as holiday decor; it’s time to eat it. Most gingerbread house kits are completely editable. Taste wise, pre-made gingerbread kits tend to taste a bit stale.