The short answer: glue the house with royal icing made with meringue powder, not raw egg white. Roll the walls at least 1/4 inch thick, and let the assembled house dry two to three hours (better overnight) before any candy goes on. Wilton says a decorated house stays edible for about five days if kept cool, dry and covered. After that it is a decoration, and it can be sealed with clear acrylic to last the season.
Searches for gingerbread house ideas peak in December, but the decorations people search for most start rising in October. A gingerbread house earns its place as decor in a way few edible things do: it sits on a sideboard or a kitchen shelf for weeks, it's handmade, and it's the one Christmas object that children make and adults keep looking at. This guide treats it that way. It starts with what holds it up, then what goes on it, then where it lives once it's done. For the rest of the season's crafts, see our DIY Christmas crafts by age.
The Icing Is the Glue
Everything structural on a gingerbread house is royal icing: powdered sugar beaten with egg white until it holds a stiff peak. It dries hard and white, which is why it does both the glueing and the snow.
Use meringue powder or pasteurized whites. Iowa State University Extension's royal icing guidance is plain about it: salmonella in raw egg whites "cannot be ruled out," and it recommends replacing them with "lightly cooked egg whites, meringue powder, dried egg whites, or pasteurized egg whites." Meringue powder is also easier. Wilton's gingerbread house icing is just three ingredients:
| Ingredient | Wilton's gingerbread house icing |
|---|---|
| Powdered sugar | 4 cups (about 1 lb) |
| Warm water | 5 tablespoons |
| Meringue powder | 3 tablespoons |
| Method | beat until it forms peaks, about 7 to 10 minutes at low speed in a heavy-duty mixer |
Two practical points from the same recipe page: keep bowls and beaters completely grease-free, or it won't stiffen, and cover the piping tip with a warm, damp towel between uses so the icing doesn't dry in it. Leftover icing keeps in an airtight container for up to two weeks.
Two thicknesses from one batch. Use it stiff for building, so a line of it holds its shape like toothpaste. For flooding and smooth snow, loosen a cupful with water, a few drops at a time. Piping bags with a plain round tip work better than the squeeze tubes in kits. King Arthur Baking's gingerbread house guide suggests simply snipping 1/8 to 1/4 inch off the end of a bag for assembling and sticking on candy.
Building It So It Stands
Erstellt mit AIDough thickness. King Arthur's guide says to roll the dough "at least 1/4" thick for strong walls." Their construction gingerbread recipe is rolled thinner, at 1/8 inch, but uses a dough designed for building, not for eating. If you're using an eating-gingerbread recipe, go thick.
Bake it hard. A wall piece is done when it is firm to the touch and completely stiff once cooled. Underbaked pieces bow and the house slumps by the next day.
Trim while hot. Straight from the oven, lay the template back on each piece and trim the edges with a sharp knife. Gingerbread spreads as it bakes, and once it cools it shatters instead of cutting. Edges that meet cleanly need far less icing.
Assemble in stages. Walls first, on a cake board or a tray covered with foil, with a can or jar propping each corner. Then wait. Wilton's assembly instructions say to let the house dry "at least two to three hours before decorating." King Arthur says full setting "could take a few hours, or overnight," and suggests building the house the day before if you're decorating with children. Roof panels go on only when the walls are hard. The most common collapse is a roof set onto walls that are still soft.
Humidity is the enemy. Wilton warns that if the kitchen is warm or the air humid, the icing may melt or fall off the house. Don't build it next to a simmering pot or a dishwasher that's just opened. Any season's damp day slows everything down.
Decorating Ideas That Look Designed
The difference between a house that looks charming and one that looks like a candy spill is the same as anywhere else in decorating: a limited palette and repetition.
- White only. Royal icing on gingerbread brown, nothing else: piped scallops on the eaves, dotted shingles, icicles, a snowy roof. It looks like a Scandinavian or Alpine cottage, and it suits any room. Our Scandinavian Christmas guide uses the same white-and-wood palette for the whole house.
- One candy, repeated. All the roof in one thing: overlapping almond slices, shredded wheat for thatch, rows of mini peppermints, chocolate buttons as shingles. Repetition is what makes it read as architecture.
- Red and white. Peppermint and candy cane only, with white icing, for a house that matches a red and white tree.
- Pastel. Sugared almonds and pale sanding sugar, which suits the vintage-modern look. Our guide to whimsical Christmas decor has the backstory of the pink-and-mint palette.
- Windows that glow. Crushed hard candy melted into the window openings in the oven makes stained glass, and a battery tea light inside turns the house into a lantern. Use a battery light only. A real flame inside a sugar house is a bad idea, and so is any light that heats up.
- A village, not a house. Three small houses of different heights look better on a mantel or a sideboard than one large one. Kits make this easy; so does one batch of dough cut to three sizes of template.
Kits are a perfectly good shortcut. The walls are pre-baked and the icing is mixed for you. The design ideas above apply to them just as well.
How Long It Lasts, and When to Stop Eating It
Wilton's assembly page answers this directly: "Your gingerbread house is edible for up to 5 days after decorating," kept in a cool, dry place and covered with plastic wrap at night against dust. Iowa State's extension staff told a reader planning to display a house for several days that, if the icing is made safely, "eating the gingerbread house later will also be safe."
That gives a sensible plan:
| When | What it is |
|---|---|
| Building day and the next few days | food: cover at night, eat any of it you like |
| After about five days on display | decoration: leave the eating to the cookies |
| If you want it for the whole season | seal it (see below) or build a second one to keep |
Preserving a show house. Wilton suggests spraying the finished house "with clear acrylic spray" or gluing cardboard inside each panel as you assemble it, and warns that "if you use these tactics to preserve your house, it will no longer be edible." Do it outdoors, and only to a house that was a decoration from the start. Label it, so nobody breaks a piece off.
Pets. Candy is where the risk lies, not the gingerbread. The ASPCA's list of foods to keep from pets warns that xylitol, a sweetener in some candy and baked goods, can cause low blood sugar and potentially liver damage, and that baking chocolate and cocoa powder have the highest concentration of the compounds that make chocolate toxic. A house on a coffee table is at dog height. Put it on a sideboard or a shelf.
Where to Put It
- Kitchen shelf or open shelving, where it's part of the room for a month. Our floating shelves guide covers how much a shelf can carry; a gingerbread house is light, but the board under it shouldn't overhang.
- Sideboard or buffet, on a cake stand, with a garland of greenery along the back. The cake stand lifts it to eye level.
- Mantel, only if the fireplace isn't lit. Sugar softens near heat, and icing slides. Our Christmas mantel guide covers what can sit above a fire and what can't.
- Not the dining table while people are eating. It gets knocked, and it hides faces. Put it there between meals.
For the Ambitious: Competition Houses
The National Gingerbread House Competition at the Omni Grove Park Inn in Asheville, North Carolina draws roughly 150 entries a year from the U.S. and Canada. Its official rules set the size of a serious house: no larger than 24 inches high, wide and long including the base, no heavier than 50 pounds, and a main structure "constructed of at least 75% gingerbread." No lights or electronics. At the other end of the scale, Guinness World Records lists a 2013 house built by the Traditions Club in Bryan, Texas, with an internal volume of 39,201.8 cubic feet. You could walk through it.
The tradition itself is German. According to Wikipedia's history of the gingerbread house, decorated gingerbread houses began in Germany in the early 1800s. Some researchers connect them with the witch's edible house in the Brothers Grimm's "Hansel and Gretel"; others argue the Grimms were describing something that already existed.
The Short Version
- Royal icing with meringue powder: 4 cups sugar, 5 tablespoons water, 3 tablespoons powder (Wilton). Grease-free bowl.
- Walls at least 1/4 inch thick, baked hard, trimmed while hot.
- Two to three hours' drying before decorating, overnight before the roof if you can.
- One color or one candy, repeated. White on brown always works.
- Edible for about five days kept cool, dry and covered. After that it's decor.
- Seal with clear acrylic only if it's never going to be eaten.
- Battery lights only, away from the fire, out of the dog's reach.
