Children's Gingerbread House

Ingredients (12)

• + ¾ cup butter add to pantry
• ✓ ⅞ cup packed light brown sugar
• + 1 teaspoon lemon zest add to pantry
• + 1 ½ tablespoons lemon juice add to pantry
• + ½ cup molasses add to pantry
• ✓ 2 eggs
• + 3 cups all-purpose flour add to pantry
• + 2 teaspoons baking powder add to pantry
• + 1 tablespoon ground ginger add to pantry
• + 2 teaspoons ground allspice add to pantry
• + 6 egg whites add to pantry
• + 4 (16 ounce) packages confectioners' sugar, sifted add to pantry