1 lb. sugar
1 tsp. cream of tartar
Water, enough to make a "wet sand" consistency
Mix the water, sugar and cream of tartar together in a pot and bring to a boil. Cook the sugar until it reaches the hard-crack stage, 300-310°F.
Remove the pot from the heat and dip edges of gingerbread into the hot sugar to assemble the house.
Work carefully as the sugar is extremely hot.