To construct the house, break the 4 rectangles into squares and, with a serrated knife, score one square diagonally to create two triangles. You should have two triangles and 7 squares.
Make your Royal Icing. Place ingredients into a mixer and combine until smooth. It will be thick! You do not want runny icing. This is the glue that will hold the house together. I divided mine into 3 disposable piping bags. No tip needed, just snip off the end.
Place one square on a paper plate and outline it with the icing. Place the East and West walls first. The icing will help to keep it up. If they are falling over, add more icing. Then add icing up the sides of those walls to attach the North and South walls. The four walls will help to hold each other up. Add a line of icing to the tops of the North and South walls and add the triangles to form the peak of the house. More icing to the tops of the triangles and the East and West walls and add the roof.
I let the houses dry overnight.
The next day, have a DECORATING PARTY! All the candy was put into cupcake trays and the girls each had their bag of Royal Icing.